Very outdated.
I first called attention to this phenomenon nine years ago.
I strongly doubt that today there are still enough people around who both learned
to type on a typewriter and haven't used a word processor enough to break old
habits. If there are still examples out there of two spaces after a period, I
doubt that anybody is going to find them (or, for that matter, would care to look).
Go to: Changing our understanding of word processing,
or
Go to: Even simpler?, or
Go to: Busy work, or
Go to: Me and HTML