Hehee...The title says it all.There is several website that force you to login.So, in this post I will teach you to hack this.I already tries this and it works! WARNING use only when you have problems(when you lost password,login information, etc)

First, go to http://bugmenot.com/. They have a large database consisting login information such as username and password to various sites. Enter the url of the website that you want to log into. A result page will be shown showing results.

If there is a problem,don't worry there is an alternative way
Youfirst must change your user agent into

Googlebot 2.1
This is very easy in Mozilla Firefox and Flock web browser. Download and install the User Agent Switcher from here. Restart your web browser. After that, go to:
1. Tools
2. User Agent Switcher
3. Options
4. Options…
5. Then click on User Agents in the right column
6. Click on AddNow type in

Googlebot 2.1
where it says “Description” and “User Agent“. The rest can be left empty. Now change your user agent so you can access member-only website.
If you’re interested to try another user agent, check the list of available user agents here.