Who's linking to me?

Ever wondered who, if anyone, was linking to your website? After reading a Digg.com article this afternoon, I did a little Google search and found some free services that can tell you what websites are linking to yours.

• WhoLinksToMe.com
  
• www.wholinks2me.com
  

They are both prety much the same website, with only slight variations. Drop me a line or add a comment if you know of other ways to find out who is linking to your website.