OPN (The Opportunity Network), formerly known as Unaico, is a network marketing company that offers its members a free social network that combines social networking with integrated services. Members of SiteTalk have access to a variety of third party pro... moreOPN (The Opportunity Network), formerly known as Unaico, is a network marketing company that offers its members a free social network that combines social networking with integrated services. Members of SiteTalk have access to a variety of third party products and services for purchase. SiteTalk members also receive a membership to opn.com.
