I strolled through all the pages of the forum looking for a thread like this (we need some sort of form of organization), but since there isn't, I figured I might as well start one.
Find a new ska band you like? An old one that we've never heard of? Post 'em!
The main reason I started this is because I found a really awesome new band, a three-piece dub-punk-ska ensemble from Coventry (the home of 2-Tone) called The Ripps
. They're not straight-up ska (they're sort of rock-ish like the Dead 60s, but not), but they're really good. Check out 'A 1000 Miles Away From Home'.