In case you didnt know of it, a great website is
http://www.bugmenot.com.
"BugMeNot.com was created as a mechanism to quickly bypass the login of web sites that require compulsory registration and/or the collection of personal/demographic information (such as the New York Times)."
BugMeNot is great. While it doesnt allow you to access paid stuff (this is a good thing) it will allow you to add and see login information for free sites that require you to register (likely for the gain of the company that runs the website; can we say selling information/spam). Anyway, they have a huge list and it works really well, one of my favorites is
www.in-forum.comGo check it out, its a great site!