I'm in the "art is intellectual property" fold. One of the reasons I don't post drawings, cartoons online is that for many artists while imitation may be the highest form of flattery, seeing your work used without permission is not flattering.

If I link a homepage or slideshow to my homepage (got tons of links to ALC'ers) I ask permission. We can seed the course with camera carrying friends at these events and or take pictures of each other but if the Pro has the shot of me I want, sure I'll pay.

S/he probably went to the same art school I did and that's expensive so should be able to recoup that cost.