(adsbygoogle = window.adsbygoogle || []).push({}); I made a search for threads like this, and I found one made in 2008.
One of the replies was to Stand it up to allow more air flow to the PS3.
Another was to lie it down to allow more air flow to the PS3.
I figured I'd make a poll to see what everyone's take on this is.

Depends If Its In My Room Then Vertically To Save Space If In My Living Room Then Vertically N Ive Gt Tha Fat PS3 So I Change Turn The Icon

I have it horizontally next to my 360

I have mine horizontally as it fit's into the press that way , have it under my television.

i have it horizontal thats nicer

I prefer it horizontally, I once had it vertically and it fell when my sis walked by. It fell on the wooden floor.