Paid advertising in 2026 looks nothing like it did five years ago. Manual bidding is mostly gone, targeting is largely automated, and the platforms increasingly reward advertisers who feed them clean signal and strong creative rather than clever manual tweaks. That shift is a problem if you're still running campaigns the old way, and an opportunity if you understand where the real leverage moved. These guides walk through Google, Meta, and TikTok advertising as they actually perform today — budgets, structures, and the mistakes that quietly burn spend.







