How about creating a link between Gnutella clients and a site like
http://www.fairtunes.com so when we happen to have cd's of some artist or come across interesting mp3's from an artist, we can make a small donation without much hassle?
Say that, if I highlight a search result, there will be a link "search for [searchterm] at fairtunes" ?
What do you think?
I like it better than the LimeWire "buy" link that leads to a (unfortunately most of the times ineffective) search on amazon (with LW's affiliate code, so they get a little of a purchase).
Disclaimer:
1. No affiliation with fairtunes.
2. No experience using fairtunes, but visiting their site gave me a good feeling. (And no, a good feeling alone is not enough for serious business.)