rapidshare.com/users/xxxxx
where a collection of files can be seen. But the question is that how to find such links? Well google will help you in this 
But how?
Use following keywords in google to see all rapidshare folders available on internet
site:rapidshare.com inurl:users “*”
site:rapidshare.de inurl:users “*”
site:rapidshare.com inurl:files “*”
site:rapidshare.de inurl:files “*”
site:rapidshare.com inurl:users (pass|password)
site:rapidshare.de inurl:users (pass|password)
Suppose u need some info on hacking.Then u can try following keywords to see all rapidshare folders having any hacking related thing in it
site:rapidshare.com inurl:users “hack”
site:rapidshare.com inurl:users “hacking”
And get you desired file/folder whatever you need. No need of any rapidshare search engine. Google will do everything for you