American Airlines has a promotion active now until 12 June 2015 that yields you 1,000 free AAdvantage Miles for watching six short (about 1 minute) videos and answering a simple question on each video.
You can even fast forward through the videos and answer the questions directly if you’re really impatient. And you don’t even have to get the answers correct to earn the points!
I value American Airlines miles at 1.5 to 2.0 cents each so your return on five minutes of your time is about $15 to $20 worth of miles. Promotions like this are especially beneficial if you’re a few miles away from an award threshold or you’re looking for a way to keep miles active (miles expire after 18 months of inactivity).
After you complete the “course” be sure to register by clicking the “Register” button before you leave the site. That’s a necessary step to get the 1,000 miles credited to your AAdvantage account. The fine print indicates the miles will post 6-8 weeks after the promotion ends. That equates to late July or early August though I wouldn’t be surprised to see them post sooner.