If you use Twitter here's a list of some Twitter accounts of some Asian actors. Feel free to add to the list.
Van Ness Wu
http://twitter.com/#!/VanNessVanWu
Robert Ryu
http://twitter.com/#!/robertryu
MC Jin
http://twitter.com/#!/ayojin
Osric Chau
http://twitter.com/#!/OsricChau
James Kyson-Lee
http://twitter.com/#!/JamesKysonLee
Jayson Li
http://twitter.com/#!/JaysonLi
Fernando Chien
http://twitter.com/#!/fernychien
Cung Le
http://twitter.com/#!/CungLe185
Archie Kao
http://twitter.com/#!/archiekao
Allan Wu
http://twitter.com/#!/wulander
David Y. Kim
http://twitter.com/#!/DKroyale
Wayne Chang
http://twitter.com/#!/wonderfulcow
Michael Wong
http://twitter.com/#!/FoxWhiskey