.NET Import Yahoo, Gmail, Hotmail, MSN address books (contacts importer/address book grabber)
Currently working on:
OAuth and other delegated authentication API's implementation (close to a release, expected 03/07/2010) Will be also adding support for importing address book info (name/email) from more webmail providers (ideas? let me know)
The contacts importer is written in C# .NET (complete rewrite from the previous VB.NET version) and it can be used in any .NET Windows or ASP.NET application through a class library (in case you are using a different .NET language than C#)
Click Here for a ASP.NET Demo (opens in a new window/tab)
Price for the complete package is $125 (USD). Demo code for the Contacts Importer is available (complete source code for Gmail) for testing on your own server.
Please, contact me for further details