Another is article marketing of affiliate products, I don't know about you, but writing articles is a tremendous amount of work.
Forget the writing, the research alone can consume entire weeks, building a campaign from start to finish.
Why spend so much time building all of these single focus, one page long copy sites, for someones product other than your own?
My opinion is to invest all of that energy into building a destination site, full of information, and can be configured to promote most anything you want.
The millionaires of IM are happy to provide you with websites, promotional materials, ebooks, ect, for good reason. Making you 1 of thousands of poor affiliates all with one purpose, "To spread their Name", not necessarily for you to earn money.
They know that a customer, upon landing on your "pitch page", if interested at all,
will simply leave your page and do a search of the product name.
Since your site is only 1 long ad copy page, information starved costumers will do extra searching just to be sure about their purchase.
That is exactly what these "Guru's" expect, and where does the search take them?
To a search page with your ppc ads?, Maybe so, unfortunately, the very product home page you are trying to sell will usually be the first organic search result. by far the most clicked result before any PPC ads.
Where do you think they will buy from then?
Food for thought!