The Yes Men, the PR-savvy troupe who recently “brandjacked” a Chevron PR campaign, said various leaks tipped them off to the launch of the oil company’s push.

The group said ecologist blogger Lauren Selman was contacted for a casting call to appear in Chevron’s ads and subsequently tipped off Amazon Watch more than a month ago providing information that helped AW, the Rainforest Action Network and the Yes Men pre-empt the Chevron campaign with its own.

Also, a street artist contacted by McGarryBowen, Chevron's ad agency, to work on some posters forwarded the information to the Rainforest Action Network.

Here's the group's full outline of how they did it and plans for the next stage of their campaign...