An old colleague of mine has persuaded me to release an implementation of an "inverted index"-based search library, written solely as MySQL Stored Procedures. Our combined work is now available on Google Code.
Search Engine Article in php|architect Magazine
I just got the regular monthly email from php|architect Magazine informing me that this month's issue is ready to download, and listing all the wonderful things inside. Turns out they went ahead and published the article I wrote for them a couple of months ago.