Definitely the easiest is Radioloyalty. Just run it in the background all the time, pop over to do the captcha every 10 min and get your 5 points. Next easiest, imo, is Crowdflower
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Definitely the easiest is Radioloyalty. Just run it in the background all the time, pop over to do the captcha every 10 min and get your 5 points. Next easiest, imo, is Crowdflower