Postagram

This week, oodles of Android users jumped on the mobile photography bandwagon that is Instagram, but do you know about Postagram? The free app (available for iPhone and Android) turns your photos into postcards and mails them anywhere in the world for only 99 cents each. Postagrams, which are printed at 300 dpi on sturdy cardstock, can be personalized with a profile photo of the sender, a brief message (up to 140 characters), and an Instagram photo that can pop out of the postcard for posterity. There's even something charming about the delivery time: two to five business days for Postagrams sent within the United States.