Here's a project that does the hard work for you and letting you know all your rights you signed away once you agreed to the ToS. The project is called ToS;DR (or Terms of Service; Didn't Read.
ToS;DR creates reports on ToS agreements, highlighting any particularly nasty things people might be agreeing to. ToS;DR is still a new project, you can use it on some popular ToS around the web, or help the ToS;DR project.
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