The Google+ API Has Finally Launched with Read-Only Public Data

Google+ launched their API for public data today. For now it provides read-only access to public data in the form of People & Activities. Here are some links to get you started:

Google+ Platform Blog

Subscribe to keep up to date on the news for the entire platform as it evolves.

Google+ Developers Site

Home to news, documentation, & quick-start instructions for everything from the +1 Button to the API as it grows.

Google+ API Documentation

Get your hands dirty and dive into the code. Currently you can pull public information on:

• People
• Activities

You can connect with OAuth or using an API Key in the Google APIs Console (login required).

Google APIs Console

The interface for managing your quotas & authentication across the Google APIs. More info here. You'll have to login with your Google account.