It's impossible not to have heard about the many different social networks online nowadays. Seems like a new one pops up every week and indeed the single most popular site on the Internet is a social network (MySpace). I know because I am part of at least a dozen different social networks, ranging from focused professional venues to chaotic amalgamations of various ideas without any rhyme or reason. You can figure out which is which....

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A few pals have told me that they've "friended" me on the bookmarking site Digg, but I have no idea what they're talking about. Since they've listed me as a friend, I figure I should list them as my friends too, but I don't know how to do it. Dave? Can you help me out?...

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I'm a big fan of LinkedIn and find it a very useful tool for both professional networking and job hunting, but as I have used it for a year or two I have found that my list of connections no longer reflects my current career direction and I would like to axe a few people from the list. I still like them, just don't want to have a formal LinkedIn connection. How the heck do...

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