Apparently, Microsoft is discontinuing at least some of their Expression Suite applications so offering them for free without support. Article that talks about it if interested.
- Expression Design might be useful to some people. It’s like Illustrator or Inkscape.
- Expression Web is an HTML/CSS editor sort of like Dreamweaver. Don’t know if that’d be useful to anyone here.
I’ve never used either one so can’t say how good or bad they are.