I don't like to throw too many ads at my users. I've been building things up slowly and making steady progress and I'm happy with that but I'd like to maybe add one more ad unit somewhere and I'm not sure exactly where. I put one Adsense unit after the first post in ever thread, one in the archives and one on the HOME page. Anyone got any good ideas for fairly unobtrusive places for Adsense ads on forums... particularly vbulletin. These new 468x15 and 728x15 ad units might have some potential.
I place mine below the navbar in forumhome, forumdisplay and showthread. I also place one above the quickreply in showthread. In addition I place one on the homepage and in the archive. I dont personally like placing them under the first post.
This works well for me because I run a stock market forum and if someone opens a thread on options, Google serves up ads to do with options right under the first post. Nobody has objected but I only do it on the first page of the thread, not every page, so it's not that annoying.