I was just reading about Yotify on TechCrunch and I thought all of you might find it useful. Yotify essentially lets you track multiple things around the web and notifies you via RSS, email, or text message.
For example, you can set what they call a “scout” to notify you when BerryReview posts something with 8310 in the article. Or you can have it notify you when a Craigslist posting has something that you want or watch an eBay auction. Quite a few options… There is also the social side of Yotify where you can share your scouts and use other peoples scouts.
Worth checking out if you like keeping some feelers out on the internet.