Study Prof

VocabSushi, though still in beta, is proving to be a nifty tool for bulking up those flabby vocabulary muscles. You’ll need to sign up first (free) and pick the test your studying for (GRE, SAT, whatever). VocabSushi will give you short quiz to find out your current verbal expertise, and then you’re off! Quizzes, reviews, pronunciations, definitions, contextual uses, and more! And when you master a word, VocabSushi will add a new word to your list so you’ll never run out.

It does have some minor beta issues, but they’re small, and certainly worth the annoyance. I wouldn’t necessarily use this as a replacement for flashcards, but it’s a nice upgrade for your arsenal.