http://www.searchbrains.com

From i-entry network:
"As you know, we have been covering SEO and Search heavily for quite some time. SearchBrains.com is basically a collection of some of the most professional and thorough blogs about the search industry we have found. It's fully searchable, updated constantly (about every 15 minutes or so) and extremely comprehensive. "

Take a look at this, its got heaps of info on what is going on in the search engine worlds.

cheers,
Luke