Some useful links, but not necessarily Korea related:
▹ Global Currency Converter
▹ Hotels: English & Korean
▹ Asiana Airlines, flights
▹ Korean Air, flights
▹ Airline Consolidator
▹ Cheapflights.com
▹ CheapTickets.com
▹ Yahoo! Travel
▹ ORBITZ.com Travel
▹ KAYAK (flights, hotels..)
▹ swoodoo (travel, €)
▹ Megaflieger (flights, €)
▹ Billigflieger (flights, €)
▹ LCC24 (Lufthansa, €)
▹ Craig's List (buy, rent..)
▹ Converting Measurements
▹ Tracking FedEx, UPS, DHL..
▹ ROK: Phone Directory
▹ USA: Phone Directory
▹ Germany: Phone Directory
▹ FileSearch (movies, PDFs..)
▹ Download/Convert YouTube..
▹ eBook Search | Scribd
Website & Server Tools:
▹ Scripts: HotScripts | CNET
▹ FTP: FileZilla (Mac, Win)
▹ Webeditor: NetBeans (all),
or KompuZer for beginners
▹ Hosting & Domains | Punycode
▹ Internet Servers and VPS