My good friend Peter Van Dijck has a excellent post (even if I want to make fun of it) that covers his research on how others have talked about scalability. The blog entry can be found at this link.
I would highly recommend you bookmark the link(s).
/Paul
ps
<Thought of the day>
For all of the good that MS does in the community, I do wonder sometimes why they(/MS) leave themselves so open to the question that their stack cannot work on an internet scale? MySpace.com presentations aside (see Mix07 presentation) , where is the MS community love for those that want to build at infinite scale? Why leave the questions so open and those that want to push the boundaries so exposed/uncertain?
R ye guys listening? ;)
</Thought of the day>