PlainLanguage.gov works to improve communication from the Federal Government to the Public. This site provides shortcuts to a wealth of materials. Resources include: quick reference tips on writing clear documents, word suggestions to keep your writing jargon-free, dictionaries, thesauruses, style guides, and grammar sites, as well as tips for starting your own plain-language programs.
The Maximus Center for Health Literacy
This two-sided reference will help you check your print and web materials for plain language and formatting that helps readers find and understand key messages. Check your materials for Reader Focus, Organization, Writing, Design, and Formatting. The more items with checks, the more likely it will be that readers can understand and use the material. Tips for checking the language are also included.