I actually had contact with the owner of the site thru email and had a nice convo about bitcoins and how it all works and I answered a lot of questions he had. Cool site! I wish they had a better system of requesting shows then going thru IRC and pinging the channel OPs.
I poked the owner on twitter a few weeks ago and suggested Bitcoin for donations as well (he had solicited I for them I think). I guess if more than one person is asking for a donation method...
that is the only way to do it, just get a couple people to ask and help these sites get start using, I think the second part is a must, I think if you get like 4 people you can trust and shoot questions is the part that helps sites make those decisions.