The Expat Guide to Seoul also includes information for visitors like entertainment, transportation, hotels, etc. There is also an automatic translation of this guide http://www.easyexpat.com/it/guides/core ... /seoul.htm that may be of help (we have an official translation planned for the future).

I would also recommend checking out expat blogs in Korea as they are a great way to get to know a place. We've feature some of their stories in our interview series: Expat Interviews in Asia

Anyone have tips to share? Enjoy!