By the way, for German speakers, other than the famous Duden online check, there's a quite comprehensive checker that does check style as well here (although I'd argue it isn't all too helpful when it comes to correctly identifying style and comma rules!): http://rechtschreibpruefung24.de
Reshared post from +Mark Traphagen
Hemingway Helps Make You a Better Writer
This is simply brilliant…and so simple to use.
Just paste anything you've written into http://www.hemingwayapp.com/ and Hemingway highlights common mistakes that can make your writing less clear and concise.