Quick definition
A social graph is the map of connections between accounts on a network — who follows and interacts with whom — which shapes how content spreads.
A social graph is the map of relationships on a social network: every account is a node, and every follow, friendship, subscription, or interaction is a connection between nodes. The term spread after Facebook popularized it in the late 2000s to describe its web of friendships. Graphs differ in shape — Facebook’s classic graph is symmetric (friendships require mutual consent), while Instagram, X, and TikTok use asymmetric follower models — and that shape quietly defines how content travels on each network.
The defining strategic divide in modern feeds is graph-based versus interest-based distribution. Graph-driven platforms — Facebook and LinkedIn most prominently — distribute content along connection lines: your post reaches your network, then friends-of-friends as engagement spreads. Interest-driven platforms like TikTok largely bypass the graph, matching content to viewers by predicted interest regardless of who follows whom. Most networks now blend both, but knowing which force dominates tells you whether building connections or perfecting content moves reach more.
A consultant publishes the same insight on LinkedIn and TikTok. On LinkedIn, reach maps the graph: colleagues engage first, their activity exposes the post to second-degree connections, and a comment from one well-connected peer triples its audience. On TikTok, the follower graph barely matters — the video is auditioned with strangers predicted to care about the topic. One platform rewarded who the consultant knows; the other rewarded only what the video held.
Map your strategy to each network’s graph. On graph-driven platforms, invest in genuine connections, comments, and employee or peer engagement, because every relationship is a distribution channel. On interest-driven feeds, pour the effort into content and niche consistency instead. Watch the follower versus non-follower reach split in native analytics to see which force is carrying you — and note that decentralized networks add a twist: Bluesky’s AT Protocol is designed to let users carry their graph between services, making it an asset you keep.
Where SocialKit fits
Every network maps a different graph — SocialKit lets you compose once and customize per platform across all 11 networks, so each post meets each audience the way its graph distributes content.
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FAQ
Quick answers to the questions people ask most about this term.
SocialKit posts to all 11 platforms from one calendar and tracks how every post performs, so the numbers explain themselves. Try it free for 7 days.
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