Part of being on LJ is inevitably gaining a number of LJ buddies. Unfortunately, as time wears on, it's easy to forget where all of them came from. Post this in your journal and have your friends respond with how they recall first meeting you. If you've met me face to face after LJ, bonus points for telling me how we found each other in both places.
If you wish, post in your LJ and I'll reciprocate.