Average daily income: $1.50 (rough estimate; varies)
On Predicto, you earn points by predicting the outcome of future events. You are given 5 points for every answer you provide, and an additional 20 points if your prediction is correct. Once you hit 500 points, you can redeem them for a $5 gift card for Amazon.com or Wal-Mart. There are many other prizes to select from as well.
Tip: I recommend answering no to most questions, because statistically most of the events are not likely to happen. Some events (like box office results, or outcomes of sports games) can be reliably estimated using online sources.