Case Wiki is Nifty!
Today I was poking around the blog.case site trying to find info for setting up a departmental blog for the Mandel Center for Nonprofit Organizations, but instead I got a wee bit distracted and ended up crawling through the Case Wiki site for much of the late afternoon.
It even interacts with blog.case! Read the Grayden MacLennan entry!

Comments
Email blog-admin@case.edu with the group blog request, and we'll get back to you shortly.
And, yes, wikis have the ability to suck you in and you end up losing a sense of time. I can't even begin to tell you how much time I have spent on wikipedia, everything2, and c2.com.