Digital media is becoming a huge space for information and communication, including heritage simulation. Meantime urban spaces are deteriorating and loosing social role. This paper shows development of heritage models like social spaces in internet to promote urban memory and meetings. A model of old square and theatre of the abandonee town of Sewell in Chile, diffused through youtube, and the model of Square of Inmigration in Sao Leopoldo, Brasil, available in virtual communities in internet with links to fotolog pages of families. These examples demonstrated relationship between technological possibilities and urban spaces that can support social cohesion.