I don't usually post just to plug another blog post, but the Greyhawk Grognard has an interesting series of four posts on Marketing the OSR. He has some interesting points. I'm not sure I'm in 100% agreement, but I think his points are pretty much on target:
Marketing the OSR, Part 1 of 4: Compatibility
Marketing the OSR, Part 2 of 4: Innovation
Marketing the OSR, Part 3 of 4: Three Target Audiences
Marketing the OSR, Part 4 of 4: Get Out of Your Comfort Zone
Go read them!
Firecracker Cancer Fund Drive is on (through July