For Advantguild Members (and this is a reason why you should join in case you haven't): how to get your work into Scientific American.
Science, like business, is one of those mediums that might seem difficult to write about but are actually dying for good writers so if you think you can do it, give it a shot.
If you need that boost, here are some resources on science writing:
Lots of tips on getting started and getting the most out of your freelance science writing income, from the good Dr. Emma Hitt.
Members of the Association of British Science Writers, who might give you some feedback if you ask them nicely about their science writing careers.
If you're loooking at it the other way, i.e. you're already a scientist, looking to get into the writing, then here are some nice basic tips via Science Editor.
And, finally, check out the National Association of Science Writers.
Now get going!
PS I'm trying to upload a smaller image of Prof. Frink but MT isn't letting me. Just so you know I"m aware of how awkward this looks.