Microsoft today announced that they are expanding their Bing Rewards program to mobile in the US. Users can now start using Bing apps to earn rewards points. You can earn credits by searching every day and then redeem them for great rewards including gift cards from top brands such as Amazon.com, Xbox, Skype, Fandango, and Dominos or donate your credits to a local school or charity of your choice. It is a great way to earn some perks for searching the web which you will do anyway everyday. How does it work? Signing into Bing Rewards on your mobile phone using your Microsoft or Facebook account takes you to a new mobile optimized dashboard that has offers customized just for you. In addition to many of the offers you would find on your PC, there is a new exclusive mobile-only search offer that gives you an opportunity to earn additional credits on your phone. Tracking your credits is simple on your phone: just go to your Bing Rewards dashboard or...