Meme
Meme is an IRC log browser written in Common Lisp by Kevin Rosenberg available at http://meme.b9.com/ .

Site seems to be dead now. Since some liks to it are still floating around the net, here is some info on how to find logs:

Older archives exist on http://ircbrowse.net/lisp

Links to meme.b9.com logs look something like this:

http://meme.b9.com/cview.html?channel=lisp&utime=3334724700#utime_requested

here, "utime" attribute looks like lisp's "Universal time" timestamp: time since January 1, 1900.

To get year/month/day and unix timestamp from it and generate a link you can use:

(defun meme-to-ircbrowse (utime) (let ((unix (- utime (encode-universal-time 0 0 0 1 1 1970 0)))) (multiple-value-bind (sec min hour day month year) (decode-universal-time utime) (format t "http://ircbrowse.net/day/lisp/~a/~2,'0d/~2,'0d ~2,'0d:~2,'0d:~2,'0d ~d~%" year month day hour min sec unix)))) (meme-to-ircbrowse 3334724700) ;; http://ircbrowse.net/day/lisp/2005/09/03 12:25:00 1125735900

(linking directly to messages on ircbrowse using only timestamp attribute is not working for me)

You can also use bash to convert from utime:

date -u --date="@$((3334724700-2208988800))"