The idea is simple, but I haven't seen this before. Place bot on IRC channel, collect URL and generate web page which shows linked images. This is exactly what irc.tnet.no does. Big brother is becoming reality. Maybe sometimes we will have also analysis what people really talk about, but images can tell quite a lot.
Anyway if you want to know what people search for, Slovak search engine provides you this possibility under URL containing well known year 1984 :-).