IRC logs in a public searchable database
“New Israeli startup IRSeek is indexing public Internet Relay Chat (IRC) channels at the rate of 6 million conversations a day. 300 million conversations have now been indexed by the company. The most popular networks, including EFnet, DALnet, Freenode and QuakeNetUndernet, are all being monitored – IRSeeK is now “listening” to 2000+ channels across 10 networks.” Source: http://www.techcrunch.com/2007/11/30/will-irseek-have-a-chilling-effect-on-irc-chat