We stumbled across two useful tools for finding and downloading files from sites like RapidShare and MegaUpload in the last few days. SizzledCore has an interesting article on RapidShare Happy Hours detector, a utility that notifies you when RapidShare Happy Hours are in effect. In case you're not familiar with Happy Hours, they're basically limited periods of time when any user can act like premium members and download all the files they want from RapidShare without waiting for a countdown timer to reach zero first.

The other site we ran across was WoonzFiles, a search engine for files on RapidShare, MegaUpload, and a handful of other file sharing sites. These sites are designed to let users upload files and provide a link that can be shared. They're not really meant for browsing, and they have no search functions of their own. But WoonzFiles makes it relatively easy to find songs, movies, programs, and other files on the sites. The only problem is that you have to search one site again. We were kind of hoping that you could search several sites at once.

And that got us thinking. We know that WoonzFiles isn't the first RapidShare search engine out there. What do you use to find files on RapidShare and other file sharing sites? Do you have a good search engine for finding files and download links across multiple sites? Let us know in the comments.