Chances are people you don't even know are being introduced to your journal every day, either randomly or through someone else. In addition to recent entries, people can get to know you better by what you posted in the past. With that in mind post a link to your entries on this day three months ago, six months ago, nine months ago, a year ago, and two years ago. If there was no entry on that day, link the closest date.
Three months ago:
A goodbye to our formerly resident DJ.Six months ago:
British OnDemand = good. Nine months ago:
A rather odd post about defying the laws of gravity and fear of flying. One year:
A survey. ^^; There's lots of 'em on my journal. Two years(ish):
Aww, my first ever post on livejournal... back when I used to type without spaces between punctuation and words. x.x; MY EYES.