Is there a good online community for discussing optimization models? The ones I have found don't seem to have a critical mass for active discussions.

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    $\begingroup$ Have you tried the OR Exchange? or-exchange.com $\endgroup$ – Mike Spivey Dec 29 '10 at 17:05
  • $\begingroup$ that website seems to be not that active, and has very few users. also it seems their LaTeX support is missing (if I am not wrong!) $\endgroup$ – user1709 Dec 29 '10 at 18:58