[BC] An interesting statistic, 50 Million users

[Glen Kippel]

On Mon, Oct 19, 2009 at 4:17 AM, Edwin Bukont <ebukont at msn.com> wrote:

>
> In a class my wife is taking, they discussed the time it took for the use
> of various personal communications technology to reach 50 Million users.  I
> thought I would share this:
>
> Radio-  38 years
>
> Personal Computers- 16 years
>
> Email over Internet- 4 years
>
> -----------------

And how long did it take to get that many on Facebook?