In this new tutorial on the Script-Tutorials.com site, they show you how to use the Google API (and OAuth) to access contacts information from your Gmail account.

In our new tutorial I am going to tell you about inviting friends. I think that this is the most important part for every website, a key to success. Today I will show you how to create simple and effective Gmail contact importer using OAuth authorization and API. Also, I will tell about obtaining Google API access too.

Screenshots show you how to get to the access token information you'll need to connect and the full code is included to help you get authenticated and pull down the contacts list to display in the page's HTML output.