You may have discovered by now that Google recently released their new Blog Search beta. So far, as always, I’ve been impressed. I’m experimenting with replacing the concept of trackbacks on my blog with Google References (see the "References" link in the post footer). This should use Google Blog Search to find all the blogs that link to specific posts of mine. Maybe a few people will link to this post as a good test case. I wonder how long it will take Google to index the references.
If you’re interested in doing the same thing, just check out how the link URL is constructed, and it should be pretty clear. If you’re using Movable Type, here’s the code:
<a href="http://blogsearch.google.com/blogsearch?q=link%3A<$MTEntryPermalink archive_type="Individual"$>">References</a>