Stumble Upon is a little tool for your web browser. Set up a few categories you are interested in (I've got knitting, alternative energy, on-line games, and religion going right now), and whenever you have a few idle minutes, click and get websites in those categories. I've found some wonderful knitting blogs, interesting alternative energy ideas, and browsed a world of religious websites. Every time you get a site, you say if you like it, and Stumble Upon gets better and better at entertaining and enlightening (and addicting) you. (more info and download here)
How do websites get chosen for this kind of dissemination? By vote of users. If you're a stumble upon user, and you click the thumbs up on your toolbar...right now, for instance, this blog would get a vote. If you don't use stumble Upon, I've provided a button at the bottom of this post.
We early adopting UU's can help get the UU word out by voting for UU websites in this way. The more web-users who stumble upon UU websites, the more people discover us.
Evangelism...and you don't even have to explain UU!