Importing gmail/yahoo/hotmail/aol address book with rails

I want to import address book of users from their gmail/hotmail/yahoo and aol address books. I am looking for a gem/plugin in rails which can 开发者_开发知识库help me do this. Any help is appreciated.

Thanks.

Ive been trying Contacts:

http://github.com/cardmagic/contacts

It allows to import contacts from gmail with 2 lines of code!!! Works wonderfully for me. Still have to check out if it supports insertion and syncing (??) maybe.

I once used a gem called Blackbook: http://github.com/purzelrakete/blackbook

It supports a number of email services. But seems it hasn't been updated for a while.