Most of the websites when you wanted to see the contents in their site will ask you to register. You may be worried about giving your personal email id because of the spams. Here is a place where you can find logins for websites that force you to register. Just get into this website and give the site name which force you to register and click the "Get Logins" button. Once you do this you get a username and password to logon. For e.g., when you want to see all the videos in youtube you will be asked to register. In that case create a login using bugmenot and then logon to youtube and enjoy watching all the videos.
http://www.bugmenot.com/