What is Social media advertising?

Social media advertising is paid distribution on social platforms, where an auction decides which advertiser reaches a given user in a given moment. What distinguishes it from search advertising is intent: search reaches people already looking, while social interrupts people who were not, which is why the creative carries far more of the burden and why the same offer needs a different presentation on each.

Modern buying has consolidated around automated delivery — broad targeting, algorithmic optimisation toward a conversion event, and consolidated campaign structures — which has moved the levers a team controls. Targeting and bidding are increasingly the platform's decisions; creative, offer, and measurement remain the advertiser's. Measurement is the part that changed most since 2021: platform-reported conversions are now modelled rather than deterministic, so they overstate contribution in ways that vary by channel, and teams that scale on reported ROAS alone tend to over-invest in retargeting. The corrective is a blended view against actual revenue, with periodic incrementality testing to establish what the paid channel is genuinely adding.