For example, here's my February entries:
http://www.livejournal.com/users/halfdutch/2005/02/
Neat.
Oh hey, just discovered it works differently in Component - just click on the name of the month and the subject line comes up!
ETA: Wow, I was a busy bee. 43 entries, 14 of them fics.
And here's Ficinabottle's March entries, by subject:
http://www.livejournal.com/community/ficinabottle/2005/03/
(Well, more or less, not everyone used a subject line.)