Feednet, a huge computer network (apparently an advanced form of the Internet), is directly connected to the brains of about 73% of American citizens by means of an implanted device called a feed. The feed allows people: to mentally access vast digital databases (individually called "sites"); to experience shareable virtual-reality phenomena (including entertainment programs, music, and even others' memories); to continually interact with intrusive corporations in a personal preference-based way; and to communicate telepathically on closed channels with others who also have feeds (a feature called m-chatting).