SharePoint Query String Parameters and Web Part Maintenance Page

Here is an excellent resource that lists the various query string parameters that can be used in SharePoint Site URLs.

Thanks to Daniel McPherson's Blog post for this info:
SharePoint Query Strings


My favorite is ?Contents=1. This will display the SharePoint 'Web Part Maintenance Page' which can be useful when you have a Web Part that is causing an error. You can then close the Web Part in this Maintenance Page.

For example:

http://teamwork.company.com/sites/yoursite/default.aspx?contents=1

This usually redirects to something like this:
http://teamwork.company.com/sites/yoursite/_layouts/spcontnt.aspx?&url=%2fsites%2fyoursite%2fdefault.aspx