I'm working with a client who has a laundry list of things he wants added to his web site: a blog, an ezine, a discussion forum. He wants to write eBooks. He wants to have an e-Course. (and yes, he can afford them, that's not the issue)

He would like me to research these things and determine which ones are proving to be profitable....and he wants to see the research. I'm scratching my head and pulling out my hair trying to find articles that say anything like, "there has been a 500% growth in ezine use," or "so-and-so reports XX% increase in passive income through his e-course."

It all seems to be anecdotal - write an ebook and make a gajillion dollars! That kind of hype.

Does anyone know of reliable sources of good solid FACTS about what's really working, what's not, what's making people money? Any sort of magazine, forum, journal, etc.?

If so, I'd be eternally grateful!