for journals (or magazines) like Nature
are you allowed to publish a longer form follow-up paper elsewhere? I thought this was the case with letter journals.
(Zoz prayed for twink on, Wed 2 May 2012, 11:28, 1 reply, 12 years ago)

Possibly, it would rather depend
but that's not really the point. It's not just Nature. Anything with an impact rating worth bothering with currently isn't open access.
( the mighty badger Aphrodite, on a bar stool, by your side, Wed 2 May 2012, 11:30, Reply)

Yes, indeed
I think researchers could make their work very accessible to the public while still publishing in high impact journals. Unfortunately it would require a lot of extra work and wouldn't really do anything for their h-index or future job prospects so there is a lack of incentive there.
(Zoz prayed for twink on, Wed 2 May 2012, 11:42, Reply)

It's nothing to do with your second sentence
You can't publish in more than one place because it breaches copyright and breaches several scientific ethics codes.

And most of us deliberately keep our stuff out of the mainstream press when we can becuase idiot journalists/press offices misrepresent what we say.
( the mighty badger Aphrodite, on a bar stool, by your side, Wed 2 May 2012, 12:02, Reply)