SBS Official Korean Site - http://www.sbs.co.kr/tv/beautidays/
NHK Japanese Site - http://www3.nhk.or.jp/kaigai/beautiful_days/index.html
GTV Taiwanese Site - http://web.gtv.com.tw/korea/beautifulday/
DISCUSSION BOARDS & RESOURCES
Soompi.com - Excellent source of Korean entertainment news, drama and soundtrack information.
Korean Film Discussion Board - Frequented by Singaporeans and Malaysians; a good source if you need help with questions confined within your country.
TV Series Fan.com - Frequented by Vietnamese; a good source if you need help with questions confined within your country.
YahooGroups Beautiful Days Mailing List.
GTV Beautiful Days Chinese Discussion Board.
YahooGroups Beautiful Days Discussion Board (Japanese).
Innolife Beautiful Days Discussion Board (Japanese)
Lee Byung Hun's Official Site.
Lee Byung Hun's Korean Fan Site (Foreigner Board).
Lee Byung Hun's Singapore Fan Site.
Lee Byung Hun's Taiwan Fan Site (Board).
Choi Ji Woo's China Fan Site.
BUGS Music (Korean) - Excellent source for listening to Korean music and soundtracks.
Annyoung.com - Online Video and Music Retail Site.
YesAsia.com - Online Video and Music Retail Site.
Gallery - Drama promotional pictures and screen captures - Site 1 & Site 2
Genny's K-POP Ringtones - Ringtones from soundtrack.
Online Novel (Chinese) - Drama in print.
SPCNet Reviews - Site editor's review.