This might have been suggested before but what the hell
My idea is to have a sort of main "aggregator" site that collects question from all of the sites in the network. Say I am active in SO and meta and in three odd Stack Exchange sites. Instead of having to visit each site in turn, I want to see questions from all of the sites in a single place page.
If we look at how reddit does this, there are the various sub-reddits, these are the different questions sites and there is the main site which a logged in user sees when he goes to www.reddit.com
which includes articles from all subreddits the user is registered to.
I think this will help especially small Stack Exchange sites that have trouble generating their own stand alone traffic. If I'll see questions from "Game Development" in my aggregated page, I am much more likely to pick it up.
What do you think?