Anki {?? (jp.)- "memorizing"} is my favorite freeware multiplatform flashcard program. 
It has built on modified spaced repetition learning technique (SM2 algorythm).
I've been carring on a own vocabulary and learn by hard the new english words with help this application.
You also can download my current own deck (vocabulary file for Anki) named "English File Intermediate course word bank" for being involved in learning process, revising before tests or check it for mistakes.
You can get this deck offline in my files area.
You also can download current version of deck via Anki online sharing service. 

Topic Links
[http://ankisrs.net/| Anki official site, english] 
[http://ankisrs.net/docs/FrequentlyAskedQuestions.html| Anki official FAQ, english]
[http://habrahabr.ru/blogs/ubuntu/103936/| Review by Habrahabr.RU community, russian ]
[http://ru.wikipedia.org/wiki/Anki| Wikipedia article, russian] 
[http://en.wikipedia.org/wiki/Anki| Wikipedia article, english]
[http://www.english-samo.com/| Unofficial tematic site, russian]