You'd be surprised what you can get if you just ask. I've got a few freebies up, and the read-me says you must ask to use it commericially. No one has (my stuff's not that good, to be honest), but if someone did, there's like a 99.99% chance I'd say yes and just ask for a credit (unless my thingie is very prominent and important to the piece and there's a huge profit margin on it, in which case, I want a piece of that. And a snowball from Hell, since it probably will have frozen over.) Why don't I just say it's freely usable for commericial use if a credit's given? 1) Asking makes sure I know about it. 2) There are some things that offend me and I don't want it used for. 3) Butt-coverage. 4) Ya never know. Hell might freeze. Oops, that kind of strayed. Anyway, I think an icon thing might be good, but it'd be nice if it considered the inbetween cases like me, where commercial usage permission is obtainable but not default.