I'd like to add that Greenlight Test Prep has a free set of videos covering strategies for tackling Quantitative Comparison questions: http://www.greenlighttestprep.com/module/gre-quantitative-comparison as well as how to handle the AWA essays: http://www.greenlighttestprep.com/module/gre-analytical-writing
We also have 2 GRE word lists on Quizlet:
- 500 commonly-tested GRE words (basic): http://quizlet.com/18795939/gre-basic-flash-cards/#
- 500 more GRE words (advanced): http://quizlet.com/18809160/gre-advanced-flash-cards/
