my facebook page: https://www.facebook.com/91agile
my twitter: https://twitter.com/JoeyChen
my blog:
http://www.dotblogs.com.tw/hatelove/
my presentations:
https://docs.com/joeychen
my articles:
http://www.codedata.com.tw/author/joeychen
my youtube channel:
https://www.youtube.com/playlist?list=PLNPgPJ-90sSlwfSHvuyafzWJ8jQphAam0