Social media
From BoyWiki
Social media are computer-mediated tools that allow people to create, share or exchange information, ideas, and pictures/videos in virtual communities and networks. The U.S. Court of Appeals for the 7th Circuit struck down an Indiana law that banned sex offenders from social media sites used by children.[1]
Facebook has software to scan chats and postings for attempts to entice children into sex. This evidence is then turned over to law enforcement.[2]