Lyricwiki has officially "joined the family of Wikia". While this is great news for the future of lyricwiki (or now Wikia Music I guess), it also somehow changed the api from the old Lyricwiki.org. For those who have been following the program in recent days, you'll know that they also had some troubles with the api and licensing deals. Anyways, I'm really hoping to find that the api is up and running again sometime in the near future. However, I do have an interim solution for you here. This just mashes together a url based on itunes artist and title info. As such, it will certainly NOT find all the lyrics you're looking for. It will not work well with special symbols like question marks and semicolons. But it might help you find some lyrics where you didn't have them before.
[Download Itunes Lyric Downloader (SANS API)] (downloaded 4004 times)
UPDATE: now works with iTunes 9!