I've made $60 using Google Adsense on my educational website since it was launched 2.5 months ago. I've tried capturing email addresses with a free ebook, but no-one has signed up. There is a huge emphasis on sign ups, but my website is generally about educational courses with multiple subjects. Unless I provide guides for each of these courses (and there are hundreds of them), how else do you think I can monetize an educational courses website? I am working on increasing traffic, but it's pretty slow.