open source address book importer

Question

I plan to implement address book importer in my site so that users can invite their contacts. I am looking for a good open source script that would suffice my need. Yahoo, Gmail, Facebook and Hotmail address book is what i am targeting.

Please suggest any software/script.

Answer 1

I think any of those sites is able to export contacts from address book into CSV format so you should search google for csv > db (mysql?) importer and ask your users to export contacts before importing them to your database.