Perhaps as a social experiment, this could be tried...

Advertise an item of not insignificant value on Craigslist (or similar) but insist on payment by digital currency (besides Bitcoin). Now, this will have to be an item you can stand to lose or give away for next to nothing. For instance, I have a lawn mower in decent shape that is worth at least $125. I live in an apartment - so I do not want or need it. I will advertise it for sale for 10 LiteCoin and see what happens.

The point of this is to make just one more person aware of these currencies. The way I see it is that this is a closed subculture and these coins will not find their own markets because the general public is not aware of them, and does not have the time or patience for mining, exchanges, wallets, etc. If someone wants to buy my mower for LiteCoins, I will gladly accept it, or help them figure out how to do it.

The more of us that do this, the better. How can these coins gain in value if they are not in the realm of understanding of the general public as 'real' money?

Wouldn't it be nice if a small ads. site like CL created its' own cryptocurrency that you could trade with directly on the site, or peer to peer? The Craigcoin!