Warnings and Cautions for Writers--Writing Contests and Vanity Anthologies 
Provides advice and links on scams that target budding writers.
http://www.sfwa.org/beware/contests.htmlWrite Ways to Win Writing Contests 
Offers authors and contestants valuable advice extracted from the editor's own book, "Write Ways to Win Writing Contests", and provides links to two major booksellers.
http://writeway.exactpages.com
Writing Scams 
Offers a guide to publication scams and writing contest frauds, including how they work, how to spot them, and how to avoid them.
http://www.eliteskills.com/writing_scams/