For some reason you have a map overlaid by the list of "latest partner activity and updates", and to me, it looks very strange. I can't see the map, just how the map borders the news. It isn't a useful design, and just makes the site look busy.
You "latest partner activity and updates" could also use some tweaking to lay them out better. I'd go with a slightly larger font, and more space between each item. Then (please), move the 'blog post/tweet' labels to a consistent position. Possibly at the bottom of each block, maybe next to the 'added x time ago...'. The way you have it now, I find it more difficult to skim the headlines. It's a bit of information design. Is the fact that it is a blog-post or a tweet really that important?
Sorry I couldn't be more helpful with respect to a review of the site, but I just don't know enough about the Microsoft partner environment to comment.