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On October 30, 2007 Plaxo announced that their Pulse feature would be one of the first applications to support Google's OpenSocial initiative.
A few weeks later, the company reported that the number of connections made on the service had taken off exponentially, from a couple hundred thousand to more than a million. Today, Plaxo has provided an update on those numbers, and the upward trend seems to have continued, with more than 7 million connections now made through the service: