http://www.eatyourkimchi.com/ The one and only. This blog is super popular and has videos on everything Korean imaginable.
http://www.koreataste.org/lang/en/category/en/food-en/recipes-en/ English website all about Korean food!
http://english.gmarket.co.kr/ (Gmarket) This is like amazon but in Korean. Cheap delivery and lots of great stuff!
http://outsideinkorea.com/ (OutsideinKorea) All about Korean food, living in Korea, and generally advice for foreigners.
http://www.yodrama.com/ (Yodrama) An amazing website with Korean melodramas and sitcoms with English dubbing.
http://www.esljoblink.com/ (ESLjoblink) My recruiter, Don Kwon´s website for those seeking to teach in Korea
http://thedailykimchi.blogspot.kr/ Awesome blog about life teaching in Korea
http://www.kimchichronicles.tv/ (Kimchi Chronicles) A show aired on PBS about a French chef and his Korean American wife who travel around Korea eating. It rocks.
http://www.jobpagoda.com/ One of the few business institutes which teach adults in Seoul