I grab my favorite stuff from the SS/FG picture thread/pedalroom, and favorite blogs and post them/reblog them at
http://mybikes.tumblr.com/ -- unfortunately none of the places I follow seem to be just bike blogs but also personal blogs and/or fashion blogs. Besides that I've had good success staying up on news and discussion by adding companies on facebook as well, they seem to announce stuff there as recently as anywhere else and you don't have to go to each of their sites.