Source: Laurie Segall, CNNMoneyTech

In April 2011, five Facebook users filed a lawsuit against the social network giant over its recently launched Sponsored Stories advertising product, which includes users' names and profile picture. If you click 'Like' on a brand like Target, your friends might start seeing Target-related ads with your face next to them.

The move didn't sit well with some of Facebook's 1 billion users, but there's no way to opt out.

Read Full Article: Facebook could pay users in class-action settlement