I've used and hated Microsoft Live Spaces for blogging.

Finally Microsoft did what they should have done years ago, they killed it.

They are getting WordPress to do all the blogs, migration path starts here:

http://windowsteamblog.com/windows_live/b/windowslive/archive/2010/09/27/wordpress-com-and-windows-live-partnering-together-and-providing-an-upgrade-for-30-million-windows-live-spaces-customers.aspx

http://en.blog.wordpress.com/2010/09/27/welcome-windows-live-spaces-bloggers/

As long as they retain the Windows Messenger Live integration (which is the only thing I liked about Live Spaces), and give me the extensibility and tools of WordPress.  This is just great for their customers.