A perfect tool to measure your Verbal progress

E - Gmat's tool scholaranium is one of those tools that help you gauge the level of accuracy of your understanding on concepts after studying each concept. As it does offer you a wide variety of questions in each concept. It certainly does help you after you go through the course and the basics. With the help of scholaranium you can point-out and analyze your weak areas, and track your improvement in real-time with the help of analytics.
The fact that you can create custom quiz really helps a lot during your final stages of your preparation.
I felt that among the course materials that are out there, this tool specially allows you to Leverage Analytics to Identify your Weakness and fine tune your preparation.