Er.. Obvious ripoffs.
However, I highly doubt you could sue over it. Maybe. Very, very, iffy case IMO.
As previously said, it does not appear theycopy & pasted stuff from your sites to theres. It looks like they based the design off it, and just copied everything, but did indeed create their "own work" from it.
Doesn't make it right, or ethical, or anything. The guys should be shot for doing it. But, like I said I think it would be a very, very iffy court case in the US.
Good luck though.. I've always respected your work, and actually have been considering you for a project that is coming up.
-Phil