Right now there are a lot of addons available in the forum section, but it starts to became a bit messy... wouldn't be nice to have a section on the site (like for the tutorials) where people can upload the addons with the related info, perhaps having some tags like "supported" "unsupported" and "obsolete" could be useful <img src="smileys/smiley1.gif" border="0" align="middle" />
The best thing would be to have something like the rex app integrated with construct (and tied to the site section that I've described before) so we can see all the available plugins and install the ones we want <img src="smileys/smiley4.gif" border="0" align="middle" />