Try to look through the #newtohubski tag, you might find some of these posts interesting. To decide who to follow, it all depends on what you value most. Do you value interesting comments? Then follow the people that leave the comments you find the most interesting in chatter. You can follow tags if you are interested in specific subjects like music. (side note: the tag of the week is #thehumancondition). You can follow a person you find posts interesting stuff...really it's up to you. Play around until you like your feed. As for drawing egos from the dark, check this thread out:
http://hubski.com/pub?id=116482 It's a quick introduction from many frequent commenters. Nowhere near the full picture, but it's a start to knowing us all better :) Welcome