GradeSaver
<http://www.gradesaver.com>
This is an online editing and proofreading service for students, designed to assist them to improve their own papers.  Also on the site are copyrighted literature study guides (ClassicNotes) written by Harvard students.  The site editors offer "a complete grammatical, substantive, technical, and stylistic revision of your essay or document with a focus on the academic environment."  Students may be tempted to ignore the posted warnings against plagiarism.

123 Help Me
<http://www.123helpme.com>
A website designed to "help" students.

Other People's Papers
<http://www.oppapers.com>
Offers free essays and papers.  Has some offensive rap music lyrics playing when you arrive at the site.

The Paper Store  *
<http://www.allpapers.com/intro.htm>
Again, one more "paper mill".

PinkMonkey.com
<http://www.pinkmonkey.com>
According to the header, this is "The leading provider of Literature Summaries on the Internet."  As such, it might be a source of many plagiarized items.

S/L/A/S/H/D/O/C/S/
<http://www.slashdocs.com>
Not exactly designed to offer resources for the taking, but could easily be misused.  This site asks people to upload documents as a web depository for the under used documents.  The site owners offer to get these documents into search engines so the authors can get more exposure to their creations.  Site also indicates the materials are copyrighted and not free for the taking.

School Sucks  *
<http://www.schoolsucks.com/search>
One more in a myriad of "paper mills" on the web.  (This one may require some "digging" to get to the actual papers.)

Sparknotes.com
<http://www.sparknotes.com>
Students often obtain material from this site and turn it in as their own. Study guides and full text documents pose a great temptation.