Paid search and paid social — Google Ads, Performance Max, Microsoft Ads, Meta Ads, LinkedIn Ads. The articles here focus on budget control, audience selection, landing-page experience, conversion tracking, and the small choices that decide whether a campaign breaks even. Start with the PPC budget management guide, the Performance Max handbook, or the remarketing-lists article if you are still planning. If you are debugging a campaign already running, read the conversion-tracking and search-ad pieces. SEMUpdates does not promise specific CPA, ROAS, or quality scores — every campaign depends on the offer, seasonality, auction, and landing page. The content is for in-house marketers, agencies, and founders making spending decisions without an account manager.