Swagbucks: Swagbucks is one of the most popular websites for earning money by watching ads. You can also earn money by taking surveys, shopping online, and playing games.

InboxDollars: InboxDollars is another popular website for earning money by watching ads

MyPoints: MyPoints is a website that rewards you for taking surveys, shopping online, and watching ads.

AdWallet: AdWallet is an app that pays you to watch ads. You can also earn money by taking surveys and referring friends.

Nielsen Digital Voice: Nielsen Digital Voice is a program that pays you to install a small app on your computer or mobile device.