Like Jason Soon my deadly sin is Pride, according to yet another on-line quiz.
When you think about it this is pretty much a no-brainer for bloggers, with the exception of some really angry warbloggers. Sloth is out by definition, and anyone who uses the Internet for blogging fails badly on Lust. In a social and economic order based primarily on Avarice, Envy and Gluttony, it’s hard for an individual to stand out on these qualities. By contrast, Pride (or self-esteem as we now call it) is an essential precondition for proclaiming your opinions to an audience of billions (OK, hundreds, but billions might read it one day).
Update My beliefs about the sins of bloggers have been refuted by the sample in the comments thread, including anger, gluttony, lust and even sloth (Scott Wickstein, who tends to swear off blogging for a while, then return like a moth to the flame – sloth or workaholic?).