Our own esteemed Frigidman has shut down his popular Myth map and plugin site, the Mill, as a result of Bungie's purchase by Microsoft. From the site:

By order from Microsoft in light of the new acquisition of Bungie Software, the Mill has been ordered to be taken offline.It's been fun, but all good things must come to an end. I must say, I hate Microsoft with a deep-seated very nasty passion now, and they will never be able to redeem themselves.

There is no independent confirmation of whether Microsoft actually asked the Mill to be taken down or not. The Mill has also posted it's final download stats along with the announcement.