Also known as: Facebook Page, Facebook Groups, Meta (Facebook), Facebook Ads, Facebook Marketplace
Facebook (rebranded as part of Meta in 2021) is the world's largest social networking platform with over 3 billion monthly active users.
People use it to connect with friends and family, join interest-based Groups, follow brand Pages, sell through Marketplace, watch videos in the Video tab (formerly Watch), and discover local Events. For businesses, Facebook is a major digital advertising channel offering detailed demographic and behavioural targeting. Facebook's parent company Meta also owns Instagram, WhatsApp, and Threads.
Facebook, explained at three levels
At home
Facebook is a website and app where you create a profile with your name and photo, then connect with friends and family. You can post updates, photos, and videos that your friends can see and react to. Facebook also has Groups (communities of people who share an interest), Events (for organizing gatherings), and Marketplace (for buying and selling locally). A lot of older generations use Facebook as their primary social media platform.
At work
Businesses use Facebook Pages to maintain a public presence, post updates, run events, and interact with customers. Facebook Ads let businesses target specific audiences based on age, location, interests, and behaviour: making it a powerful but complex advertising platform. Facebook Groups are also used by businesses to build customer communities, run membership groups, or organize audiences around a brand. If your target customers are adults 30+, Facebook is likely still a relevant marketing channel.
At home
Facebook's algorithm determines what you see in your News Feed based on what you interact with, what people you're connected to engage with, and what advertisers have paid to show you. The more you like, comment, or share certain types of content, the more similar content you'll see, which can create an echo chamber effect where your feed reflects only views you already agree with. Your privacy settings control who can see your posts: Public, Friends, Friends of Friends, or Only Me.
At work
Facebook Business Manager (now Meta Business Suite) is the hub for managing business assets: Pages, ad accounts, Instagram accounts, and pixel tracking. The Meta Pixel (a tracking code placed on your website) links website visits and purchases back to ad campaigns, enabling conversion tracking and retargeting. Facebook Ads Manager offers detailed audience targeting, multiple campaign objectives (awareness, traffic, conversions), A/B testing, and performance analytics. Running effective Facebook ads requires understanding the auction system, bid strategies, and creative optimization.
At home
Facebook's business model is entirely advertising-based: the company collects detailed behavioural data on users (not just on Facebook, but across any website running the Meta Pixel or Facebook Login) to build advertising audience profiles. This data collection is extensive (location history, app usage, browsing behaviour, purchase history) and is the subject of ongoing privacy regulation. iOS 14.5's App Tracking Transparency (ATT) framework significantly reduced Facebook's ability to track iOS users, causing a reported $10 billion revenue impact in 2022.
At work
Facebook's advertising platform uses a real-time auction model where the winning ad is determined by bid x estimated action rate x ad quality (relevance). Higher quality rankings (Meta's measure of ad relevance and expected engagement) allow lower-cost ads to beat higher bids. Conversion API (CAPI) is Meta's server-side tracking solution that supplements or replaces the browser-based Pixel: sending conversion data directly from the business's server to Meta's API, bypassing browser tracking restrictions. CAPI became critical post-iOS 14 to recover conversion visibility lost to ATT opt-outs.
Real-world examples
At home
Nadia used Facebook primarily to stay connected with relatives who lived in other countries. She shared family photos in a private Family Group, used Events to organize holiday gatherings, and found her neighbourhood's local buy/sell group through Marketplace. Her News Feed mixed family updates, Group posts, and ads: she noticed the ads uncannily reflected things she had recently searched for on Google.
At work
Marcus ran a home renovation company. He maintained a Facebook Page with project photos and customer reviews, and ran Facebook Ads targeting homeowners aged 35-65 within 50 km of his city. He used the Meta Pixel on his website to track form submissions (quote requests) and retarget visitors who viewed his bathroom renovation gallery but didn't request a quote. Cost per lead from Facebook Ads was competitive with Google Ads for his specific service area.
How it compares
| feature | ||
|---|---|---|
| Primary audience | 25-65+ adults, global | 18-35 adults, visual-first |
| Content format | Text, links, photos, video, Groups | Photos, Reels, Stories |
| Business tools | Pages, Groups, Marketplace, Events | Shopping, Reels ads, brand partnerships |
| Ad targeting | Demographic, interest, behavioural | Same (shared Meta Ads platform) |
| Organic reach | Low (1-5% of Page followers) | Low but higher for Reels |
Facebook and Instagram share the same ad infrastructure (Meta) but attract different demographics and content styles. Facebook suits community building, local business, and older demographics; Instagram suits visual brands and younger audiences.
For analysts
When a client asks whether to invest in Facebook advertising, the first diagnostic is audience age: Facebook reaches adults 30+ effectively; for audiences under 25, TikTok or Instagram typically outperform Facebook. The second diagnostic is business type: service businesses with defined geographic areas (plumbers, dentists, contractors) often find Facebook's local targeting and community features effective. E-commerce brands get strong results from Facebook's product catalogue ads and retargeting. B2B companies usually find LinkedIn more effective than Facebook for professional audiences.
History & origin
Mark Zuckerberg launched Facebook from his Harvard dorm room in February 2004, initially limited to Harvard students before expanding to other universities and then the general public in 2006. The platform introduced the News Feed in 2006 (a continuously updating stream of friends' posts) which became the defining template for social media feeds. Facebook went public in 2012 in one of the largest tech IPOs in history. The platform's growth drove the era of 'platform capitalism': free access in exchange for behavioural data used to sell targeted advertising. The Cambridge Analytica scandal (2018) exposed how third-party developers misused Facebook's data, triggering regulatory scrutiny and congressional testimony from Zuckerberg. The company rebranded to Meta Platforms in October 2021 to signal a strategic pivot toward the metaverse. As of 2026, Facebook remains the dominant social network globally despite losing popularity among younger demographics in Western markets.