Which do you feel is better when dealing with a highly specialised subject:
1. give away free ebook in exchange for email (leads)
2. charge for a premium ebook (lead generation secondary)
I think in some case 2 is better, if you are trying to present the credibility and premium value of your product. I understand its possible to combine them both but choosing 1 or 2 will inform big differences in creating an effective lead generation page vs a click through landing page.
I'm worried that focusing on lead generation can dilute the possibility of making an immediate sale, especially when dealing with a desperate customer looking for an immediate solution.