Such as second life, are societies in which communication can be expanded to relay information in ways that cannot be done with other forms of media and are examples of the thin line between games and social media.

Virtual worlds

Explanation:

Virtual worlds are the world of the three-dimensional environment in which a person can interact with self and others. For example, in the avatar, you feel like any of the representations that can be shaped in any form as you wish. There are in virtual world includes fantasy, historical, social and science fiction. In these, the person cut from the reality that is the part of this virtual world. These all are the part of the attraction. In the virtual world, men can appear as women and women can be seen as men. Some people choose they are alter ego as an animal.

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.