iOS: With all the great stuff on the Internet, sometimes you may have trouble finding articles you're specifically interested in reading. Reverb hones in on just the stories you want.
Instead of viewing articles by topic, the Reverb app organizes content based on keywords within the article. The more content you read, the more Reverb learns about your interests. The app then delivers just the stuff you want using a keyword cloud format. If Reverb guesses your interests incorrectly, you can just delete the keyword so Reverb doesn't suggest articles on that topic again.
Reverb (Free) | iTunes App Store via Fast Company