I don't think there is an easy way around something like this. When I work with Tcl I search at ActiveState's website, when I do C# I go to MSDN, Python, I go to python.org. Is there a specific reason you need a central location rather than going to the handful of main programming sites for each language/environment ( besides being lazy =D )? Maybe a better question would be "What sites are the best to search for [insert favorite programming language]?" because I think you'll find that most search engines have to make exclusions for performance since so many people use them for different reasons. Better to just find a site that focuses on your subject matter and then search.
