As posted on Ben Ramsey's blog (and released out through the PHP community) - a press release about PHP Groups:

PHP Groups, a worldwide network for PHP user groups, launched today with the intent to foster an open community for PHP user groups to share and exchange ideas and information. Membership is open to anyone working with a PHP user group or interested in starting one.

At present, PHP Groups provides a mailing list where user group leaders and those interested may subscribe and take part in a dialog with other user groups. "I hope that part of our accomplishments will involve uniting and bringing together for an open dialog all of the PHP user groups across the world," said Ramsey. "I hope this mailing list can get that conversation going."

If you're interested in the project and want to get involved, check out their mailing list and website to get complete details.