There are many ways to get people onto your list. Lead magnets are one such resource. For example, you can build ebooks, checklists and cheat sheets. But you can also do content upgrades, such as PDF versions of an article with added resources in them, four-part video training series, and more. Think about your audience and what you can offer them to better serve them, then treat them with some respect and you'll eventually reap the rewards.
I know this post is a few months old but I stumbled onto an app called Quickthoughts, a survey site. Unfortunately they only give out Amazon gift cards. You redeem them every time you hit $10 which is shockingly easy because every survey if you qualify pays $2 and then id you don’t qualify they credit you .10. I was skeptical because I hit 10 bucks in less than 2 hours and have cashed out 4 $10 Amazon gift cards .i took a screen shot as proof but not too sure how to post or if I am able my current valance is 5.70 doing a few short surveys just today.