MSDN Enhanced Search and Community Server Search
I was browsing https://blogs.msdn.com/ scanning various blog posts on MSDN Blogs and found a blog entry by Buck Hodges's about enhanced msdn.com search. Buck's blog entry linked to https://lab.msdn.com/search/ which allows searching the following directly: msdn.com, MSDN Forums, Codezone, and MSDN Blogs.
It's interesting to compare search MSDN Blogs on Windows Live versus going to https://blogs.msdn.com/ to use the Community Server search engine directly to search MSDN Blogs directly on Windows Live.