Google Ads: The most popular PPC platform, where advertisers bid on keywords and display ads in search results or on partner sites through Google’s Display Network.

Bing Ads: Similar to Google Ads but for Microsoft’s Bing search engine.

Social Media Ads: Platforms like Facebook, Instagram, LinkedIn, and Twitter also allow PPC campaigns where you can pay for engagement (clicks, views, or interactions).

Amazon Ads: A form of PPC advertising tailored to sellers and products on Amazon’s marketplace.