Hello,
I've put together a Google Co-op Search Engine focused on computer
science which may be useful to others:
http://www.google.com/coop/cse?cx=015887117281940237895%3Azrfwqmuywbs
It gives priority to search results hosted on the most respected
repositories for computer science related research papers and articles,
including, among others: computer.org, sciencedirect.com, acm.org,
citeseer.
Regards,
Ricardo.
