SNSD Wikipedia page: https://en.wikipedia.org/wiki/Girls%27_Generation
SNSD Official Youtube Page: https://www.youtube.com/user/GIRLSGENERATION/featured
SM Town Youtube Page: (For more SNSD MV)
https://www.youtube.com/user/SMTOWN/
SNSD Official Website (Korea): http://girlsgeneration.smtown.com
SNSD Official Website (Japan): http://www.girls-generation.jp/
SNSD International Fan Club: https://www.soshified.com