Anki is a customizable flashcards program that helps you with learning vocabulary, studying for exams, brushing up on your geography knowledge and much more. The program provides access to a large library of free flashcards (called `Decks`) on a wide range of topics, and you can also create your own decks to help you study pretty much any topic you want. The possibilities are virtually endless, you can create simple, text based flashcards or include audio/video, images and even scientific markup. Anki uses an intelligent training method (based on SuperMemo SM2 algorithm) that lets configure how much and how long you want to study each day, and automatically selects cards based on your learning progress. Other features include support for shared decks, synchronization with portable devices (iPhone/Touch, Android, cell phones etc.) and other computers, statistical graphs, customizable study schedules, and much more. Probably one of the best flashcard programs you can find!