I think floored says it best...
Every once in a blue moon, I Google my half-sister Kayla. The backstory is that I lost contact with her, as well as my other half-sister and two half-brothers somewhere in the range of 3-4 years ago.

Today, I decided to try my other half-sister. What do you know, a not-used-in-7-months LJ link comes up. I click. There's a MySpace link. I click.

There she is. And, to boot, my half-brother is in her top friends. I click. I click to add both. I send messages. I notice my half-brother has added me back...or is it automatic? I don't know.

Now I wait and hope they both respond. I don't think it was until I found them that I realized how much I've missed them.

Update: I just found my other half-brother, Andy, as well...one more to go and I've found them all again...