Interesting technical questions

[wb.john]

I often wonder where my hotmail yahoo
Files are stored. I can go anywhere in the
world and dig up the same emails. Is there
a physical place a data bank(s) where this
is stored?
Another question is about cell phone range.
How far can a signal go? I know the signal is
High frequency line of sight. I also know TV
and FM broadcast signals can travel great
distances under the right conditions such as
a skip caused by humid atmospherics.

Here's some interesting reading for your first question.