I have a large following via social media + on various pages and groups I own. They all know me well and trust me. I want to give away some eBooks and was thinking of using a content locker to monetize them, but most content lockers I run across seem to be very very spammy looking. Can anyone recommend something that doesn't look ultra-spammy? Ideally it would just be a survey they have to fill out that takes like 20 seconds - 1 minute to do, like on news websites. I looked into CPA Grip and it looks pretty spammy to me.