Possible Duplicate:
Gmail Contact api
How can i get (grab) email contacts by supplying Username and Password?
From Gmail, for example.
Please suggest or point me real working one.
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Look at the OpenInviter http://openinviter.com/ , I believe you can get the full contact list from most popular social/email services. This would get you going on how to get started, as its open source and you can go through the code to see how it works.