Internet Explorer tool to see partial source

[This was originally posted at http://timstall.dotnetdevelopersjournal.com/internet_explorer_tool_to_see_partial_source.htm]

A coworker of mine recently showed me this great and free tool:
http://www.microsoft.com/windows/ie/previous/webaccess/default.mspx

It's an IE add-in that lets you select a portion of the rendered text and view its source.

1. Select the text
2. release both mouse buttons
3. Right click the mouse over the selected text for the context menu
4. You'll see a new option "View Partial Source".

Very helpful for development!