Import contacts and friends from social networks and email providers in an asp .net website

I want to include in my asp .net website ( c# ) a function to import contacts and friends from my social networks and email providers. I would prefer if I don't have to choose the option of redirecting to each social network. I would rather have an API which can provide me the functionality of giving the credentials and return my contacts from each social network. DO you ha开发者_开发百科ve something to propose to me?

Try using the OpenContacts.Net controls

OpenContacts.NET is open-source library for importing contacts from popular web-mail services. Now supports: GMail, Yahoo! Mail, Live (Hotmail).

Here is the url to the project: http://sourceforge.net/projects/opencontactsnet/