Many developers have joined the new Google+ social network in the last week, as Google opened it up by invite only to a select few…million users. What Google didn’t do is provide developers with a sneak peak at the official Google+ API, so some developers have begun to create unofficial Google+ APIs themselves.
As they did with the unofficial Google Maps mashups, developers have jumped the gun to create APIs that may be likely to become official APIs at some point–but those who use them have to do so with the knowledge that Google may stop their functionality, or make minor changes that break them at some point.
Unofficial Google+ APIs include Google+Tweet, Google+Facebook, CircleCount, PHP-based Google+ API, Rudimentary Google+ API, as well as a Chrome browser extension called Google+ Share to Twitter/Facebook.
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