links for 2007-03-21 21st March 2007Robin Hamman Virtual worlds are ‘worth $1bn’ “The market for massively multiplayer online games (MMOGs) in the West is now worth more than $1bn (£511m)” (tags: virtualworlds secondlife habbo onlinecommunitymanagement onlinecommunity) Politics Online Conference Bivings does a conference round-up from the Politics Online conference in Washington DC (tags: bivings conference politics politicalblogging bloggingtechniques blogging bloggingfordollars)