For the old-schoolers...
... found this MeFi thread, it made me all nostalgic for the old days.
Pyra (the Blogger company) has a new product called pyRads which promises to become a turnkey microadvertising service for webmasters, like TextAds for anyone's site.
Even features a link to one of my all-time favorite Sippey pieces, Pyra's Killer App. I would like to see a feature comparision between Pyra, Joyent, and Basecamp (or is it Backpack?) sometime.