e-Commerce Bytes--The USPS filed price changes with the Postal Regulatory Commission on Tuesday and announced that the cost of mailing a letter would rise by a penny beginning January 22, 2012. Letters (1 oz.) will increase to 45 cents, the first increase in the price of a First-Class Mail stamp since May 2009. The additional ounce rate will remain unchanged at 20 cents.... The USPS said Delivery Confirmation would be free for several parcel products as the Postal Service continues to make tracking an integral component of parcels mailed at commercial rates. Read more!