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Facebook's algorithm chooses content to display on the News Feed based on user data

It employs machine learning to prioritize posts and ads based on user interactions, content type, and post timeliness, creating a personalized, engaging experience for each user.

Meta has added video features to attract more young users to Facebook

Amid an aging userbase and competition from newer social networks like TikTok, Facebook has seen its perceived relevance and cool factor progressively decrease. The Local tab and dating features are among several efforts to counter this perception.

Private Facebook groups are acting as an entryway to support groups

Many groups are findable via search but only members can see their content. Others are "secret"—meaning an existing member must invite you to become part of it. But they're all free, remote, and potentially accessible 24/7. (Some users may encounter a paywall.)

Aimed at increasing user engagement, social media algorithms will intentionally show content in feeds that is misaligned with users' beliefs because such content is more likely to be commented on.

Facebook launched its 'like' button and Twitter its 'retweet' button in 2009, innovations psychologist Jonathan Haidt argues rewired social media to reward outrage over accuracy.

The 'Facebook papers' revealed the company prioritized profit over public safety

A whistleblower came forward with internal documents showing employees warned leadership about the company's role in fueling political unrest and misinformation. Systems like XCheck shielded high-profile users like President Donald Trump from normal content rules, often to avoid PR backlash.

Before 'The Facebook', Mark Zuckerberg made 'Facemash.com'

During Mark Zuckerberg's sophomore year at Harvard, he built a website that allowed users to rank and rate people's pictures from the school's online "facebooks" called Facemash.com, which quickly went viral. He was placed on academic probation for violating the school's rules around data, privacy, and computer usage. Zuckerberg says the website was a prank and he never intended for so many people to see it. FaceMash is credited with being the predecessor to Facebook.

Social media platforms benefit not just from ensuring they have satisfied users, but also from the personal data they scoop up and can then sell to online advertisers.

Facebook launched in a Harvard University dorm room in 2004

The controversial "FaceMash," where students rated each other's attractiveness, was the precursor to Mark Zuckerberg's social network. The platform rebranded as Meta after several acquisitions and a push into virtual reality, distancing itself from controversies.

The first social media platforms date back to the late 1990s, and their algorithms were typically chronological, with entities like MySpace and Facebook feeding users content from the most recent posts to the oldest.

A major dopamine hit from social media use comes from unpredictability—not knowing if the content users post or share will get the 'like' from other users, triggering cycles of anticipation similar to those experienced with a slot machine.

Facebook dominated US social ad spend in the first half of 2024

This data visualization shows the social media platforms where advertisers spent the most money in the first six months of 2024, with Facebook leading the pack taking home 36.3% of US social ad spend.

Excessive social media use is linked to feelings of increased isolation, mental health declines, increased stress and general dissatisfaction among teens.

Extremist groups have used Facebook to propagate misinformation and recruit members

For years, Facebook has been accused of taking a too-light approach to content moderation. While it's made strides in recent years, problematic content continues to thrive on the company's platforms.

As of April 2022, a million people access Facebook on the dark web monthly

While those using an anonymized web browser, such as Tor, have been able to access the social network's .onion site since 2014, the announcement marks a major milestone by the tech giant, which has worked to ensure its users can bypass restrictions by various governments and continue visiting the site.

Facebook's internal documents show that though the company publicly plays down Instagram's harms, its own research found that Instagram has promoted mental health issues for teens.

Mark Zuckerberg credits some of Facebook's success to constant evolution

Before becoming the head of OpenAI, Sam Altman was the president of Y Combinator—a startup accelerator company that supported companies like Airbnb, DoorDash, and Coinbase. In 2016, Altman interviewed Zuckerberg about creating Facebook and its growth over time. Zuckerberg said that, unlike other companies (think: CourseMatch), Facebook kept growing and adding new features, which prevented the app from becoming obsolete.

One Facebook investor turned $500K into $1B

Peter Thiel was Facebook's first big investor. In 2004, he invested $500K into the social network, long before the company owned Instagram or renamed itself "Meta." In 2012, when he sold off most of his stake, he turned that initial $500K investment into more than $1B in cash.

Our phones can provide a dopamine hit because of our positive associations with them, which feeds into what some psychologists call social media addiction.

Bumble debuted its 'Bumble BFF' feature in 2016

Rather than helping users find romantic matches, Bumble BFF helps people make platonic, friendship introductions. The feature now operates as a standalone app, "Bumble for Friends," built on top of Geneva, a company that Bumble acquired in 2024.

Why TikTok's algorithm is likely driven by what you linger on

While the inner workings of the engine driving the vast majority of the app's engagement remain a secret, it is understood to rely heavily on what content users spend the most time watching rather than swipe past. Experts believe the app can develop user profiles robust enough for its algorithm to consistently match engaging content to in as little as two hours.

View a history of hashtags through 2013

First used on Twitter in August 2007, the social media shorthand gained popularity in October of that year during the San Diego wildfires as a means of coordinating emergency response and disaster relief. Instagram, Google+, Flickr, Facebook, and other social media companies would later integrate hashtags into their platforms.

Social psychologist Jonathan Haidt, author of 'The Anxious Generation,' contends that children are losing the ability to pay attention as they spend half their lives perusing social media content designed to hook them.

Mark Zuckerberg said some of the details in 'The Social Network' movie were spot-on—but most of the story arcs were inaccurate.

See the Russian Revolution reimagined as if it unfolded on social media

This creative project retells the lead-up to the 1917 October Revolution as a Facebook-style newsfeed, blending archival photos with excerpts from letters and diaries by figures like Trotsky, Gertrude Stein, and Stravinsky to recreate events in a modern format.

How to read the news on TikTok

There's plenty of news on TikTok, but that doesn't mean it's all reliable. This guide, written by a communication technology professor, breaks down the ways the app's algorithm delivers news. It also covers how users can determine whether or not a story is factual or misleading. Most strikingly, the professor warns readers that if they didn't search for a TikTok video, then "it probably found you."

What is the Fediverse?

The "fediverse" is a league of like-minded apps looking to make our digital identities—including posts, followers, activity—move seamlessly between networks. It's a decentralized approach, making various social networks interoperable in contrast to Facebook and Twitter, where content is platform-specific. The fediverse provides stability and control to users. Learn more here.

At 12 years old, Mark Zuckerberg built a messaging platform for his family called 'ZuckNet.'

Mark Zuckerberg demos the Quest 3 VR headset

Meta, back when the company was still known as Facebook, once tried and failed to launch a smartphone. With the arrival of the mixed reality era, the company decided to make another hardware play again—and this time, it's having better luck. Meta's aggressively priced Quest headsets offer VR for the masses, and here CEO Mark Zuckerberg shows off the new mixed reality experiences and more available with the latest version, the Quest 3.

Mark Zuckerberg apologized for not doing enough to stop the spread of misinformation on Facebook ahead of the 2016 election

Leading up to the 2016 election, misinformation about both Donald Trump, Hillary Clinton, and even Barack Obama flourished on Facebook. In the final stretch leading up to the election, more than one-quarter of Americans visited a fake news site supporting either Trump or Clinton. Many fake news studies have widely different methods of measuring and assessing the impact of fake news, so the actual impact it had in the 2016 election is unclear.

Around 87 million users were impacted by Facebook's Cambridge Analytica scandal

Cambridge Analytica, a consulting firm with Russian and conservative ties, harvested data from Facebook users through a research tool that tracked interests across social connections on Facebook. Those profiles were used for targeted ad campaigns supporting Donald Trump in 2016 and pro-Brexit ads. A whistleblower originally said the private data of more than 50 million Facebook users was compromised, but a Facebook officer later estimated the number was around 87 million. Facebook settled the class-action lawsuit over the privacy breach for $725M in 2022.

Reimagining YouTube as cable TV, complete with channel-surfing

The site streams YouTube content as if it were broadcast television, providing the ability to flip through channels and enter videos mid-stream, and you also can't easily skip ahead. The product is designed in part to bring back serendipity to video discovery.

Disconnecting from technology can be made easier by turning off notifications, making nonessential apps and devices harder to access, and opting for 'dumb' devices, such as a film camera.

Why Google Search's ranking system combines filters, signals, and machine learning layers

Rather than static rankings, dynamic tools continually shift search results in real time. These include Twiddlers, which adjust ranking positions based on document traits and search context, and FreshnessNode, which reshuffles top results to prioritize timely informational content.

Randi Zuckerberg, Mark's sister, was Meta's first marketing director

Randi is two years older than Mark and also attended Harvard before working in advertising. Before joining Facebook, Randi worked in digital advertising at Ogilvy & Mather. In 2018, Randi attracted criticism for saying Holocaust deniers shouldn't be banned on Facebook. She's also previously been criticized for her own seemingly contradictory sentiments on Facebook's privacy rules.

In 2018, Tencent's market capitalization hit $580B, surpassing Facebook (now Meta) for the first time.

Mark Zuckerberg views Meta as a technology company—not a social media company

Despite Meta's core products being social media apps, Zuckerberg is adamant that Meta is a technology company that has built social media apps, but can build and is comfortable building other technologies—like AI-integrated glasses and virtual reality labs.

An interactive timeline of history, from beginning to middle

The history of humanity is a long, winding road, and the history of everything else is even more complex and interwoven. This interactive timeline takes users through the history of the world and includes links to related videos, blurbs, and events. Each event in history is represented by a dot, providing users with a glittering horizon filled with moments of intrigue and impact.

YouTube's recommendation algorithm relies on over 80 billion daily pieces of information

These signals include which videos a user has watched, searched for, and liked, as well as channel subscriptions and feedback selections, such as videos marked "not interested." Each user's viewing habits are compared with those of other users with similar habits, and this information is used to suggest additional content.

'Move fast and break things' was one of Mark Zuckerberg's early leadership principles

The phrase was plastered across Facebook's office as a representation of the company's hacker mindset that fueled its early growth. However, Zuckerberg said he has since moved away from that motto and has focused more on sustainability as opposed to breakneck growth.

Small ways to improve your health today: an animated guide

What are some ways that you could start making a positive impact on your health today? This animated gallery overviews several health topics, including sleep and hydration, and offers ways to improve that aspect of your life. Clicking on the...

Threads offers sleek design but fails to deliver X's unique user experience

Despite its smooth setup, Threads lacks the algorithmic depth and cultural edge that made X (formerly Twitter) feel essential to longtime users. The overlap with Instagram contacts creates a less authentic space, limiting the raw, real-time energy people loved on X.

There’s a psychological explanation for ‘FOMO,’ or the fear of missing out

This video breaks down FOMO—what it is, how it works, and why it happens—showing how social comparison and uncertainty trigger anxiety that pushes people toward risk-taking and constant checking behaviors.

A deep dive on everything you need to know about virtual reality

In the wake of Facebook’s purchase of Oculus VR, can the revolutionary technology triumph anew? These interactive articles chart the rise and fall — and rise again — of VR.

51 must-see attractions in Barcelona

Planning a trip to Barcelona? Check out this comprehensive list of the city’s most iconic sites. It’s organized from most well-known to least, so if you’re pressed for time, the authors recommend concentrating on the top of the list.

An online presence provides a means of grieving and honoring individuals after death

Shifting perspectives toward the increasing importance of digital profiles of the dead have made anticipatory management of one's digital legacy more critical. Experts suggest choosing a tech-savvy relative—such as a cousin—over a spouse to reduce confusion about what to preserve or discard, as well as how to access password-protected content.

Explore noteworthy use cases for ChatGPT

From asking the chatbot to sort grocery lists to bird-watchers using it to help identify birds, the official ChatGPT Instagram account spotlights interesting and creative use cases for the tool, especially in the days after a significant update or model has been released.

Mark Zuckerberg testified before Congress eight times between 2018 and 2024

Zuckerberg testified in Congress for the first time in 2018 over Facebook's privacy violations and its failure to detect Russian interference on the app during the 2016 election. Since then, Zuckerberg has appeared a total of eight times to defend Meta against privacy violations, child safety, and more. (Some users may experience a paywall.)

The early success of Facebook made Mark Zuckerberg a college campus celebrity

Within 24 hours of launching in 2004, more than 1,200 Harvard students signed up to the platform, which quickly expanded to other Ivy League and Boston-area schools within months. By year's end, Zuckerberg left Harvard to run the company in California.

See the original websites for companies like Google, Facebook, and Apple

Explore archived images of homepages on websites dating all the way back to 1991.