(Wondering what does anyone-can-contribute mean? How about a look at Wikipedia FAQ and learn how does one edit a page.)
I'm puzzled, too. Someone (perhaps the person who put up
AmbientCalculiOnline) has already put up
AmbientCalculusOnline. Neither of those names is likely to be the name of an encyclopedia article (though
ambient calculus will, I'm guessing--guessing, because I haven't got a clue what ambient calculus is!). So there's no problem about your putting up links to papers online from this Wikipedia page. And in fact, I personally am delighted if all these people should show up and contribute to Wikipedia!
Anyway, hello, whoever you are--you who have put up AmbientCalculiOnline--I just wanted to welcome you to Wikipedia. I hope you'll stick around and write some mathematics articles for our collaborative encyclopedia. --Larry Sanger