Both of those are great websites. I like Mike's a lot obviously because he is a Western Slope man, but he's also got a great eye for photography. Some amazing shots on there.
The Bomb Flow boys transitioned into Substantial Media House
a while back. Grew up a little bit but still lots of great kayaking.
Leif & Natalie
are fun to follow.
is a nice resource for Canada boating. They've got a good beta website and a decent blog
And Darin McQuoid runs a nice, clean self-titled website
, a modern progeny of his original "jscreekin". Not that much on heavy content, but always has phenomenal pictures, and good product reviews and photography advice.