How's about a specific tag for photos/dios for each WW topic, something like the twitter hashtags, then that tag could simply be listed in the WW announcement post.

I'd also be keen to see some more publicity for each WW announcement, but perhaps simply a new sticky every week would do the job?

With that said, weekly is not something I could realistically do, far too much work on - I'd prefer a monthly topic, with perhaps weekly sub-topics, then people can focus on specific weekly shots or do a generic monthly one if they lack the time every week.

Just a few random ideas I thought I'd throw out to the wolves