Nuget.org is down (slow day for .NET Devs starting new projects)
nuget.org
It's been like this since at least 8am.
nuget.org
http://docs.nuget.org/docs/creating-packages/hosting-your-ow...
It's pretty easily and makes you less dependent on nuget... It took me a half an hour te get it set up.
PS. I wonder if it's as easy to setup your own private rubygem feed :)
edit: It's not really back yet.