Business lead generation. Give the reader a taste of the content and have them fill out their info to get access to the entire report. Then you build a list that you can market to later. Hubspot does this well - http://www.hubspot.com/marketing-resources. As a rule of thumb nowadays content shou...
From what I understand, you are trying to help an SEO agency sell to other agencies that themselves sell to dental/medical companies? It's tricky without knowing more details, since this question keeps coming to mind: Why is the SEO agency interested in white-labelling their services to agencies...
In my opinion, I would consider your long-term goals. If your plan is to build a brand around yourself and become established as a major influencer, it certainly makes more sense to go that route. On the flip side, your low hanging fruit is to build a brand around the concept by which you intend...
If I had to start over, I would have built my email list of raving fans first. I was already published on Amazon, B&N, Kobo, and iBooks, but I gained traction by having a readership of peeps on my mailing list who I could contact every time I had a book ready for release. Something I've learned...