I know no-one wants to give up his/her trade secrets but where is everyone selling their domains nowadays.
Is it better to try to sell them on forums where you know the community or auction sites?
If you're looking for a quick sale, I'd say that it's definitely better to sell domains in forums. But I don't think you can sell domains as high compared to selling through companies like Sedo.
As above SEDO for high end names, but Digitalpoint or sitepoint for normal mid sized domains and ones that you want to dispose of quickly!
before acotually seleling / buying a domain name try doing a domain name appraisal with http://www.zippozap.com/ (http://www.zippozap.com/) to acertain the true value of your website