Proponents say that the online communities promote increased interaction with friends and family; offer teachers, librarians, and students valuable access to educational support and materials; facilitate social and political change; and disseminate useful information rapidly.

Opponents say that the sites prevent face-to-face communication; waste time on frivolous activity; alter children’s brains and behavior making them more prone to ADHD; expose users to predators like pedophiles and burglars; and spread false and potentially dangerous information

What do you say?