There was a time when Bing wasn’t worth serious searching.  That time is no longer.  I have noticed Bing giving better results than Google for some programming related searches.  For example trying to modify a WordPress install to override permilinks for some directories.  Bing gave me the answer that worked.

I remember the reason I started using Google was for programming related searches (in fact that’s what my Computer Science professor used it for) and only after that for everything else.