This question already has an answer here:
Nowhere near as impressive as all the Greasemonkey scripts and custom parsings that are out there, I did take a few moments to follow The TXI's suggestion over in the blog and use Google Custom Search to create a quick search engine for the SO network. Afterall, I think Jeff himself has said that searching Google is a great way to get at some of the questions in there.
If anybody is interested in collaborating or anything to make the CSE work better, please let me know and I'll be happy to add you to the collaboration control panel.
The "hard" link is: http://www.google.com/coop/cse?cx=004055899985439311584:twnxsyrgj4a
though I have a "friendlier" redirect setup for now by going to: http://sofum.dillieodigital.net
Hope this helps some folks out there!