If you are interested in attending seminars to learn more about building successful Adsense sites, keep your eyes open and get on as many mailing lists as possible. It is surprising how many of the Gurus are willing to let you attend their seminars for free or at a nominal cost whether they are on dry land or as part of cruises where you can combine business with pleasure.  The benefits are much more than the main input: the people you meet will also expand your Adsense knowledge.