Who knew you could be paid to listen to music? Slicethepie is the largest paid review site on the internet that pays you to listen to music and write detailed reviews. How much you'll earn per review varies by the quality of your review. A.k.a. the more detailed and constructive, the better. The minimum payment is $10, so once you've reviewed enough songs to earn at least $10, your money will be sent to you via a direct payments on PayPal.
Like Airbnb, becoming a ridesharing driver for companies like Uber, Lyft or Sidecar is a way to join the shared economy. And though it is not technically earning money from home, it allows the same kind of flexibility and it is a way to use an asset you already own (i.e. your car) to make money. There are things to keep in mind, though, about driving other people such as whether your car insurance will cover you and how you pay taxes on your earnings.