Home field advantage?

Does anyone know what the home field advantage is in baseball? Assuming you're dealing with two teams of equal ability.

fan support, used to playing on your own turf. I think fan support is the main one.

This season, home teams have a .548 winning percentage.

Not having to travel, sleep in a hotel, hostile crowd, better knowledge of field, getting to bat last...

Thanks, Pete - that was the answer I was looking for.

BTW - how are things?

Things are good. By the way, I have something you might be interested in, but you may have already thought of it yourself. Have you ever tried the same thing we did before with online sports books? If not, send me an email and I'll tell you about it.