I wanted to take this idea further and maybe integrate something Messengery into SUB. After a single search I come across DotMSN, a C# library for Messenger. So& as an experiment I've integrated the library into SUB. When someone begins to browse my site (like you are now), the first person there invokes the blog to sign-in. After the blog has signed in, it then checks the accounts in its contact list to check if I'm online, so without doing anything, you know if I'm on the net, and I know somebody is on my blog.
So how can we communicate? Well for now I've added some functionality into the comments event, when you leave a comment, SUB will send it via Messenger to me as well as to my set up email account as normal.
I guess there are limitless things you could do with a blog that signs into msn but I think I'll leave it at that for now and see how it goes. What do you think?