importing contacts using GWT

hey everyone;
i am trying to import contacts from :
1- Gmail
2- other social media accounts (Hotmail, Yahoo, AOL ...etc )

anyone can help me in an piece of code that works with app engine ...
thnx :)

--
You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group.
To post to this group, send email to google-web-toolkit@googlegroups.com.
To unsubscribe from this group, send email to google-web-toolkit+unsubscribe@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.