An incentive problem of ad hoc networks still remains for relaying frames from other nodes. By utilizing the Social Network System such as Twitter and Facebook, it is possible to estimate the degree of intimacy of friendship links not only to direct friends but also indirect friends such as friends-of-friends. If we provide links of ad-hoc network in relation to direct/indirect friends instead of other incentive mechanisms, ad-hoc network can obtain infinite potentials to connect all nodes efficiently and cover wide areas by short range communication such as IEEE802 wireless LANs. This paper is devoted to discuss social network based (real) ad-hoc network concept and evaluation of its connection probability performance.