This Week's Social Media Quiz

The common belief is that platforms sell personal data to advertisers. They do not. What they sell is access to their audience. Advertisers pay to show ads to specific groups of users based on behavioural data that never leaves the platform. The data stays inside. The targeting leaves.

Research on digital advertising exposure suggests the average person encounters between 4,000 and 10,000 brand messages daily across all digital surfaces. Social media platforms account for a significant portion of that exposure because of how much time users spend on them.

Despite offering services used by billions of people across Facebook, Instagram, and WhatsApp, nearly all of Meta's income comes from advertising. The platforms themselves are free to use because the users are the product being delivered to advertisers.

Facebook's Like button went through several name proposals before launching in 2009. One internal proposal called it the Awesome button. The simpler Like won. The button fundamentally changed how people sought and measured social validation online and has been linked to anxiety and approval-seeking behaviour in research studies since.

Aza Raskin invented the infinite scroll feature in 2006. He has since become one of its most vocal critics, estimating that the feature costs humanity approximately 200,000 hours of collective human attention every day. Infinite scroll removes the natural stopping point that previously existed at the bottom of a page.

The sounds used for social media notifications are engineered to be attention-grabbing and rewarding. Research in behavioural psychology shows that variable reward systems, where you sometimes get a reward and sometimes do not, are more addictive than consistent reward systems. Social media notifications operate on exactly this principle.

WeChat is not just a messaging app. In China, it functions as a payment system, a government ID platform, a ride-hailing interface, a food delivery tool, and a social network simultaneously. Over 1.3 billion people use it monthly. It has no direct equivalent in Western markets.

Despite TikTok being perceived as a US-dominated platform, its most followed individual accounts are held by creators from diverse global backgrounds. The platform's algorithm distributes content globally in a way that no previous social platform did, creating non-Western celebrities with genuinely global audiences.

VKontakte, known as VK, was founded in 2006 by Pavel Durov, one year before Facebook launched internationally. It operates primarily in Russian-speaking countries and has over 100 million monthly active users. Durov later founded Telegram after leaving VK under pressure from Russian authorities.