When Facebook launched in 2004, it was a student directory for Harvard undergraduates. Two decades later, it is one of the largest platforms on the internet, with over three billion monthly active users worldwide and around 38 million in the UK alone. The company behind it rebranded as Meta in 2021, but the Facebook platform itself remains its core product and, for many people, the place where they spend a significant part of their online life.
How It Started
Mark Zuckerberg built the original site while studying at Harvard. The name came from the printed directories, known as facebooks, that some American universities gave to new students so they could learn who else was on campus. The site was initially limited to Harvard students, then gradually opened to other US universities, then schools, then workplaces, and finally to anyone over 13 with an email address.
That expansion happened remarkably quickly. By 2008, Facebook had overtaken MySpace as the dominant social network. By 2012, it had a billion users and had floated on the stock exchange. MySpace, Bebo and other early competitors faded away almost entirely.
What Facebook Became
The platform today looks very different from the simple profile pages and wall posts of the early years. Facebook now includes Marketplace for buying and selling locally, Groups for communities built around shared interests, Reels for short video, live streaming, fundraising tools, dating features and integrated messaging through Messenger. For many small businesses, a Facebook page serves as their main online presence.
Meta also owns Instagram and WhatsApp, meaning the company controls three of the most widely used communication platforms in the world. Across all its apps, Meta reaches around 3.5 billion people daily.
Privacy and Data Scandals
Facebook's growth brought serious problems. The most damaging was the Cambridge Analytica scandal in 2018, when it emerged that a political consulting firm had harvested personal data from up to 87 million Facebook profiles without informed consent, using it for targeted political advertising. The fallout was significant. Facebook was fined five billion dollars by the US Federal Trade Commission, Zuckerberg was called to testify before the US Congress, and the company eventually paid a further 725 million dollars to settle a class action lawsuit in 2023.
The scandal accelerated a broader shift in how governments regulate technology companies. In the UK, the Online Safety Act 2023 now requires platforms like Facebook to remove illegal content promptly and to take steps to protect children from harmful material. Platforms that fail to comply face fines of up to 18 million pounds or ten per cent of global revenue, whichever is greater.
Mental Health and Young People
The effect of social media on mental health, particularly among teenagers, has become one of the most debated topics around Facebook and Instagram. Internal research leaked by a former Facebook employee in 2021 suggested the company was aware that Instagram could be harmful to some young users, particularly teenage girls, and had not acted on those findings.
The UK government has considered proposals to restrict social media access for under-16s, though these remain controversial. Critics argue that bans could cut off vulnerable young people from support networks they rely on. The debate is far from settled, and the practical effects of the Online Safety Act's child protection requirements are still being tested.
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The Meta Rebrand
In October 2021, Facebook Inc renamed itself Meta Platforms, announcing a long-term focus on building the metaverse, a vision of interconnected virtual and augmented reality spaces. The rebrand came at a difficult time for the company, amid the privacy scandals, whistleblower testimony and growing regulatory pressure.
The metaverse ambitions have so far delivered mixed results. Meta invested billions into its Reality Labs division, producing VR headsets and virtual worlds that attracted curiosity but not the mass adoption Zuckerberg predicted. More recently, the company has shifted its public messaging towards artificial intelligence, positioning itself as a major player in generative AI and integrating AI features across its platforms.
Where Facebook Stands Now
Despite the controversies and the rise of newer platforms like TikTok, Facebook remains enormous. It is the most used social network in the world by monthly active users and continues to grow, particularly in Africa, Asia and Latin America. In the UK, over half the population uses it regularly.
Its role has shifted, though. Younger users increasingly treat Facebook as something their parents use, preferring TikTok, Snapchat or Instagram for everyday social interaction. Facebook's strongest demographics are now adults over 25, and its most active features tend to be Groups, Marketplace and event organisation rather than the personal status updates that defined its early years.
The platform that started as a college novelty has become part of the infrastructure of online life for billions of people, for better and for worse. Whether that remains the case in another decade is harder to say.
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