A coop is a social and educational institution as well as a mutual employer.

A coop should not restrict the rights of it's employees any more than a regular
"citizen". Eg, contracts should have no non-compete provisions, no restrictions
on employee's activities and behavior outside of work, no muzzling effect on
blogging, etc.

Tech Coops
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http://www.gaiahost.coop/

http://www.isthmuseng.com/

http://electricembers.net/aboutus.php