PaperKarma is awesome. The concept behind it? See a piece of junk mail that offends you in your mail box — anything from magazines, catalogs, coupon books, fliers, credit card offers, and the root of all evils, the Yellow Pages — take a picture of it and boom, the PaperKarma team will "take care" of it, mafia style.

Every time a user takes a photo and taps "Unsubscribe," PaperKarma either uses its "massive" database or Mechanical Turk to figure out who sent the junk mail. Then it either submits an "Unsubscribe" form or sends an email application in order to eliminate the paper spam, gradually cutting down on pollution and annoyance. Cool right? The company — which is in the same space as Catalogchoice and Unsubscribe – is bootstrapped and completely mobile. Sweet. Download this app today!