The Writer’s Digest offers daily tips and writing prompts, to help you work through writer’s block
http://www.writersdigest.com/TipsPrompts

This site is filled with resources for writers
http://easywaytowrite.com

Cliff Pickover offers tips for writers
http://sprott.physics.wisc.edu/pickover/writertips.html

Useful tips for fiction writers - this site include articles, tips and more
http://fictionfactor.com

If your niche is horror writing, you will find helpful tips and articles on this site
http://horror.org

Children’s author, Robyn Opie, offers tips and advice on writing books for children
http://www.robynopie.com/freewritingtips.html

Articles for anyone interested in writing romance novels
http://romancedivas.com/resources.html

Women on Writing web site offers articles and resources for women, by women
http://wow-womenonwriting.com/

This site was designed to share the views and experiences of published authors with novice writers in a series of 18 questions
http://eighteenquestions.com

Writer’s Tips from author, Erica Jong
http://www.ericajong.com/tipswriters.htm

Tips from author, Monica Wood
http://www.monicawood.com/tips.html

Writing tips for non-writers
http://www.scalzi.com/whatever/004023.html

This site offers a variety of writing and grammar tips
http://www.writersblock.ca/tips/index.htm

Writing tips from the University of Illinois

This site offers creative writing tips from Dakota State University
http://www.homepages.dsu.edu/jankej/writing/tips.htm

This site offers 11 important rules of writing
http://www.junketstudies.com/rulesofw/

Tips for revising prose
http://www.rpi.edu/web/writingcenter/revise.html