Socialtext announced the released version 1.0 of their workspace package. It's groupware thingie for enterprise. I'm using it for a lot of my workgroups. It's basically a wiki with a blog-like feature that sort of looks nice and has login, which makes it not really a wiki, but not a blog... I guess it's a workplace. Anyway, as you know, I love this kind of alchemy.
They also announced Kwikspace based on Kwiki as an open source project.
Disclosure: I'm an investor in Socialtext