URLs in code comments

I was looking through a colleague's code today, and noticed a comment:

' Taken from http://www.vb-helper.com/howto_shell_wait.html

I followed the URL, and read an article about the code. Although I do use internet code as a basis for many things I write, I've never thought of putting the URL in the comments before. What a good idea! I think I'll do that in future.

5 January 2006