Additional links can be found here.
MIT has put together instructional videos to show the benefits of peer review to students and instructors. There are guides for incorporating peer review into your classroom.
This blog instructs teachers on how to incorporate technology into the classroom, lesson planning, grading, etc.
UNLV Instructional Development
Writing Lessons & Exercises
This site provides grammar and writing information on both a micro and macro level. You can select information ranging from sentence to essay level, along with quizzes and powerpoints.
With this tool you can put together a variety of lessons to help students with proofreading, editing, and grammar. You can use lesson made by other instructors or create your own.
Like quill.org, No Red Ink is comprised of a variety of writing related lessons but with more of a grammar focus.
TED's educational site's literature and language section has short videos and quizzes on grammar, style, rhetoric, etc.