I'd say it's mostly: - Landlords and real estate developers (who are making a killing in the current bubble) - B2B companies targeting startups - Professiona

I'd say it's mostly: - Landlords and real estate developers (who are making a killing in the current bubble) - B2B companies targeting startups - Professional services (lawyers, etc.) Chris Dixon has written about selling pickaxes in a gold rush: http://cdixon.org/2011/02/05/selling-pickaxes-during-a-gold-rush/ http://cdixon.org/2011/02/05/selling-pickaxes-during-a-gold-...