Here are a few websites which contain good information and practice material which will be very helpful for your preparation for revised GRE.
I feel whatever information you need is available in this blog. Yet if you want any more information, you can find it on these websites.
Links to download free practice material from this blog: Click here
1. http://www.majortests.com - Good for a complete revised GRE practice test
2. http://www.greguide.com - Some good strategy tips
3. http://www.mygretutor.com - some good revised gre practice questions
4. http://learnwordlist.com - Good for wordlists
5. http://gre.learnhub.com - Good for verbal questions
6. http://www.4000wordz.com - Good for building vocabulory