$$$ GRAMMARLY is an online proofreader, grammar assistant and plagiarism checker. We tried our own hand, inserting raw EdSurge copy, and voilà, Grammarly produced a 100-point score based on grammar, punctuation, plagiarism, contextual spelling, and style and word choice. (Nope, we're not sharing!) Although it's web-based, Grammarly also supports integration with MS Office and Blackboard. Be wary of the signup process, however: before enjoying a seven-day free trial, you have to enter credit card information. If you're searching for a schoolwide solution to support students' writing, you can request to be part of a 60-day pilot here.