On Narrative and Descriptive Writing

http://grammar.ccc.commnet.edu/grammar/composition/narrative.htm

Writing links

Forming Your Thesis Statement
http://www.wisc.edu/writing/Handbook/Thesis.html

Opening Your Draft
http://www.nutsandboltsguide.com/beginning.html

Developing the Middle
http://www.nutsandboltsguide.com/middle.htm

Ending Your Draft
http://www.nutsandboltsguide.com/ending.html

Revising Your Voice and Style
http://www.nutsandboltsguide.com/plainstyle.htm

Revising Collaboratively
http://www.wisc.edu/writing/Handbook/PeerReviews.html

Using the Writing Center
http://www.ruf.rice.edu/~riceowl/

Avoiding Imprecise, Misleading, and Biased Words
http://www.bartleby.com/62/

Also, for help with specific word-choice challenges like wordiness, take this quiz.
http://college.hmco.com/cgi-bin/SaCGI.cgi/ace1app.cgi?FNC=AcePresent__Apresent_html___eng_elibrary49