Created and operated by Purdue University, the Online Writing Lab is a free resource (designed for those in seventh grade and up) with answers to questions about grammar and usage, information about teaching writing, English as a second language, and dozens of links to resources parents can use to help their children.
With a selection of podcasts, vidcasts, and downloadable guides, OWL has something for everyone who writes - student, educator, and -- of course -- blogger. Try it the next time you have a question. If they don't have the answer listed you can always email them for guidance.
Photo Credit: John Haslam via flickr cc