exactly that actually, we posted a flyer in a computer store, I think it was called "Cybertech" and had a couple ppl show up the first night, then a few more, then a few more. We started having a table at computer shows helping people install linux on their desktops, and finally we ended up taking over a cybercafe and converted all of the desktops to linux. You could run a web browser, play doom, it was fun.