I'd say for the last four years I visit celticsblog about 10 times a day and spend at least two hours rummaging through the forums and reading posts.
Beyond that I have discovered a disturbing trend as well. Over the last few weeks I have discovered all of the most important news covering sports, politics, life and everything else by logging into celticsblog. When ever anything important happens, big or small (the deaths of Micheal Jackson, Walter Cronkite, Arturo Gatti, Vernon Forrest, and Steve McNair, Sarah Palin stepping down, the Prof. Gates fiasco, and Obama's response, the trade for Victor Martinez and Big Papi being on the steriod list, etc.) I find it out here first. I guess its just a product of visiting the site that much, but its kind of creepy.
I'm as addicted to the celtics as I am to celticsblog and its nice to know there is a whole bunch of people just as sick in the head as me.