TechCruch — How does it work? It took me awhile to figure it out exactly, but now that I have I see that it doesn’t have to be difficult at all. Users start an account at Byoms.com, then make a list of related web sites they would like to be able to search from IM. You can set up a search client for one site or for several together. Quite a few preferences can be changed; number of replies sought, length of the URL displayed in the results, number of sentences to display from immediately before and after the search terms, etc.
The best way to see how the system works is to try it out. It’s AIM only, unfortunately, but if you’ve got an AIM account here’s three query clients you can add to your buddies list.