Tomorrow at the Web 2.0 Summit, Microsoft will announce partnerships with a couple of Web 2.0 companies, I’ve learned (sorry, I can’t share more details until after the Ballmer keynote). On first look these partnerships might not seem to be a very big deal, but I think they are potentially significant. Particularly if Microsoft starts making other moves into the Web 2.0 space (which I think we’re starting to see).

I’ve been impressed by the work being done on Live.com properties lately. If you’ve been watching my link blog you’ve seen me put several things on there in the past two weeks. Things like Live Spaces, and other stuff that Dare Obasanjo has blogged about here.

If this is a trend it’ll bring a lot of goodness to the Web 2.0 startup industry. Microsoft has a world-class sales organization. Still is used by nearly everyone outside of our tech bubble and has HUGE economic power to totally change the game.

Translation: I’m cheering Microsoft on.