Flixya currently stop new registration. What? So I can’t upload any document or pictures in it. Flixya is one of the website that powered by Google Adsense. You can get your adsense account approved quickly if you join this website.
The other site is docstocs.com. But it was a sharing adsense account. Thier adsense will appear in your article and you will paid for it ( if someone interested with the ads). I don’t know what is the percent did you get. On the other hand you can try app to monitor smartphones and see how it will work. Maybe 50% or more. You should try it. Because you don’t have to own any websites or blog to make money with adsense.