InterNations
InterNations GmbH
代理浏览器
DS tools
Interpals: Friends & Languages
InterPals
Tandem语言交换:免费学习英语 韩语 西班牙语
Tripod Technology GmbH
K-Friends - Make Korean Friend
Kfriends
Meetup: Social Events & Groups
Meetup
Slowly - 结交笔友平台
Slowly Communications Limited
HiNative - 语言学习
Lang-8, inc
Nextdoor: Neighborhood network
Nextdoor.com
MEEFF - 交韩国朋友
(주)넵튠