My long-lost brother

I decided to put this here because it is about family relationships; hopefully this is a good place for it.

My mom emailed me today to tell me that she has made contact with my older brother, who she gave up for adoption at birth. He's ten years older than I am, which means my mom was 19 when she had him.

She told me about the existence of my brother about two years ago, when she started looking for him. Meanwhile, my brother had decided to seek her out, and his parents gave him documents with my mom's name on them. He found a phone number for her, but the number was disconnected, so it took another year for him to find her.

He wants to meet me and my sister who lives nearby; he's looked us up online and is just waiting for the go-ahead from my mom to contact us. He's just down in Corvallis, and I've even looked at his Myspace page... I'm kind of tripped out!

Also anxious, because my mom was, honestly, not the greatest mom and my sister is really angry at her, and I'm worried about this guy (my brother!) being disappointed.

Anyway. Still processing.