Hi! How's your Korean? You can test yourself, practice, or otherwise study, by working with old TOPIK 한국어능력시험 questions, presented online here.
Maybe you want to watch some YouTube videos about Korean? Check this out! There are playlists for Korean sayings (속담) and the Korean writing system (한글).
Or perhaps you like reading blogs, liking things on facebook, or following things on twitter. That's kind of weird, but hey, knock yourself out!
Have a good time!