One thing that is wrong with the ASP.NET MVC framework is the name: ASP.NET MVC Framework is too long, it's composed by 4 words, and so not easily usable as "tag".
- some split them in more tags: ASP.NET MVC becomes ASP.NET and MVC
- other needs you to enter them with a + between the words: ASP.NET+MVC
- yet another behavior is using the underscore: ASP.NET_MVC
Given all these different behaviors people tag posts, articles and whatever else related to that topic with many creative different tags. I saw using (and I also used myself):
- ASP.NET, MVC
- ASP.NET MVC
- and so on
My opinion is that the best tag is "aspnetmvc" since it's just one word, and uniquely identify the topic (while mvc could refer also to other kind of mvc framework like RoR or MonoRail).
So, whether you are tagging someone else contents, or writing your own content, please tag it with "aspnetmvc".