So long, MSDN blog
UPDATE 3: Rock stars Scott Hanselman and Dan Fernandez and their colleagues have gotten my MSDN blog back up, and will also restore the late cbrumme's blog as well. Thank you both, and everyone else at what I can only assume is the Microsoft Content Migration Disaster Mitigation Team for your prompt attention. I very much appreciate it.
I'm still going to migrate all my content over to ericlippert.com though.
UPDATE 1: I see this has been linked from HackerNews; welcome, new readers. Normally this blog is not me complaining about Microsoft corporate decision making blunders. I'm currently on part 15 of a series on basic probabilistic programming in C#, so if that interests you, stick around!
For reasons unknown to me, my MSDN blog has been deleted without warning. (Microsoft, I would have appreciated a heads-up. It's not like you don't know how to reach me!)
This is unfortunate, since there are literally thousands of links to it spread over the internet that are now dead. And there was a lot of good historical content there. This is very disappointing.
Fortunately I have a backup of all the text, and the graphs and images can be recreated.
I've started putting up the old content here, but it will take some time to get it all formatted correctly and whatnot. So far I've made it through September 12, 2003, so one day down, many hundreds more to go.
Apparently all the old MSDN blogs are being taken down, which is a great loss. I relied upon old blogs like the late, great cbrumme's blog to archive the early design decisions for .NET, and there are many others that will be missed.