TIN is the default newsreader on Lynx.
A newsreader is a program that allows you to read, post and respond to articles that are posted to the Usenet Newsgroups. There are currently over 6,000 Newsgroups available to the N.U. community. There are also several thousand other groups not currently available. Usenet Newsgroups are discussion groups in which you may participate. In many ways they are similar to a huge bulletin board.