Bing

Bing is a search engine.  It is a lot like Google, but with Bing, you can earn rewards towards gift cards by doing every day searches.

Once you sign up, you have three ways to earn.

1. Searches -- You are allowed 15 points a day, which is a total of 30 searches.  Once you reach gold status, you can to up to 40 searches for 20 points, if you keep up with the minimum searches per month.
2. Suggested Pages -- Everyday, there are 1-3 suggested pages you can visit to earn 1 point when you visit it for the first time.
3. Referring Friends -- For every friend you get to join that reaches silver status, you will earn 200 points.

Redeeming Prizes
When you first join, it will take about a month to earn your first prize.  A $5 Amazon gift card is 525 points.  Once you reach gold status, the price of the same $5 Amazon card will be 475 points.  I have redeemed one card so far.  I received the card a few hours after I ordered it.