Grabbing users email and sending invite requests to his friends, How does it work?

Question

I have a since in which when users register, I need to ask them to invite their contacts from YahooMessenger. But sadly, I have no clue as to how to even begin. Any answers or links would be awesome.

Answer 1

You have to consult yahoo api doc depeding on the contact fields you need.

this would help

http://developer.yahoo.com/social/rest_api_guide/contacts_table.html

hope it helps