I am a bit confused by the name and description of this forum. It seems to imply gmail is some form of new or seperate advertising, but I don't know of any gmail specific advertising. You can show up on there via adwords, but something else I don't know.
I browsed the topics and they all seem to relate to gmail as a mail service/reader. So I don't understand the use of advertising in the name of the forum and the description.
Originally, this forum was established to cover the emerging AdWords appearing in Gmail. However, as you are well aware, Gmail does not have a specific system for advertising solely on Gmail.
The forum covers a lot more than just Gmail advertising.