WhoLinked: show who's linking to your blog

WhoLinked: shows who's linking to your blog.

WhoLinked provides a widget that displays in real-time which sites are linking to your blog.

Web: http://WhoLinked.com

In real time, WhoLinked shows the other websites that are linking to you - from all over the Web.

It is very easy to use; you just need to copy the code. After trying it out, I discovered an unexpected feature: it can also show which search engines have indexed your blog.