I was reading Robert's blog regarding some essential topics that should be discussed on meta during a site's private beta (and beyond). I think we're doing a pretty good job of raising issues that need to be discussed such as tagging, the final domain name, etc.
One thing that I have not seen come up is how we intend to promote the site once its out of private beta. I think we have a really unique opportunity to shine in that regard, since most of us own and operate at least one web site that receives a substantial amount of traffic.
I think its also safe to assume that most of us operate at least one web site that serves advertisements of some kind. That may not be entirely true, but I think the assumption describes the majority.
What we need are banners, standard size that we can use to promote the site. I am graphically challenged, so I'm probably going to end up paying one of my designers to come up with something. The Photoshop / Inkscape talented, however might be interested in posting some concepts here :)
We don't need the final logo or domain to get started on these, so I propose working on them now.
I know the fine folks at Stack Exchange have talented and competent designers on staff, but they may or may not understand the quirks of my users. Hence, a gallery of many concepts would be quite useful :)