Currently we have the Announcements thread, the Developer's Journals and sometimes the lounge are used to publicise/market games that various members. For the most part a lot of these announcements I see are from short-term "just joined to post" members but some are from longer term members who are active participants in helping the site to grow as well seeking aid in their various projects.
What I propose is that gamedev creates a "showcase" gallery (basically a museum as such) which takes those projects created by consistently active members who in addition to their own needs have taken time to help others out in gamedev and have as such become associated in part with gamedev i.e. in a sense that we have contributed to the creation of said game by help through the forums for various problems/advice etc as well been a part of the gestation process and as a form of recognition to those active members.
I see this as gamedev being able to provide another form of legitimisation/publicity to show that games have been developed utilising these forums as an effective tool and as time goes on, a pedigree of games associated with this site becoming well established. I would suggest that application for inclusion in this particular gallery be somewhat restrictive - so that it does not become another announcements forum but rather one that meets criteria as mentioned above or something along those lines.
edit: as an addendum this might also be used to store historical jams such as the Kraken event