Paid acquisition is the practice of buying user or customer traffic through paid advertising channels. Channels include search, social, display, video, affiliate, podcast, and influencer, where the marketer pays per click, impression, install, or completed action. It is the fastest-feedback channel in growth marketing and the most ruthless: every dollar in produces a measurable result, and every channel either pays for itself within a defined window or gets cut.
The major paid channels for startups in 2025 and 2026 are paid search (Google Ads, Bing Ads), paid social (Meta, TikTok, LinkedIn, X, Reddit, Pinterest), display and retargeting (Google Display Network, programmatic DSPs), video (YouTube, connected TV), and increasi...