Do you mean books? You can try this website http://www.hanbooks.com/kolate1.html Last saturday I received 12 books on Korean language and TOPIK preparation I ordered from yes24.com. Delivery took only 10 days (from South Korea to a distant town in wildlands of Siberia, where bigfoot yeti guys still ride bears to hunt dinosaurs) by EMS. There was no problem in making an order, except that you'd better make sure they have the books you want in their stocks, otherwise you'll have to wait till they get it or cancel out the books they don't have at the moment. ps: Thank you so much for helping me with that order! ;-) pps: Some books are definitely worth having. There are explanations on some grammar points that I didn't get anywhere else (including Korean Grammar for International Learners, which I use as my main grammar reference).. um.. or at least they emphasize those points (difference in use among similar grammar structures). I won't give any recommendation though, because one should buy books that are suitable to one's own needs.

Real, real cheap...various online sites for learning Korean. I have a little of this and a little of that (1-to-1 with voice and text with native speak:Italki, dictionaries, written lessons, grammar, syntax, rhythm, vocabulary, etc.). Ask your browser, take a peek at what looks good, then make your choices.