This is definitely the best Korean/English dictionary I’ve found so far. While it does generate some interesting and somewhat questionable example sentences, it’s relatively easy to use and is an invaluable tool.
I love love love this website ! I cannot recommend this website highly enough for anyone studying Korean, it caters for absolute beginners up to intermediate learners with their 이야기 series.
Cute cartoons for learning Korean on a huge variety of topics
Free downloadable textbooks from Monash Uni. Quite useful, especially the audio tracks and index tables at the end of the books.