That is something I would like to know. ;)
Not so long ago Orkut rolled out Google Ads across the forums in order to make those unfriendly donut errors go away (something I am quite thankful for).
Now it seems that the Orkut team has placed a tiny link near the bottom of your screen allowing businesses to sign up directly and advertise on Orkut.
However when clicking on the link, you are brought to this page that will be very familiar to anyone who uses ad sense (like me).
Basically when you see this link points to an Onsite Advertiser Sign-Up which allows people to sign up and place ads on your site via Google earning you (if they click) more revenue.
Usually Google has a link like https://adwords.google.com/select/Login or http://www.google.com/ads/ allowing users to sign up with Adwords.
Although Google Groups has a "See your message here," link, it points to the previous mentioned links above.
Orkut's sign up link seems to be more suited for individuals (or businesses) and my question is whether Orkut (the founder) is making six figures off of the forums or if it is split between everyone on the team? (and that would include Ellen)