I myself am on HAI. I haven't gotten any bites from it yet. But I know many illustrators who have. So if it's within your budget, give it a try! Luckily it's 7 dollars a week and you can quit whenever you want, but I would consider investing in it for at least a year! I'm also on Childrensillustrators.com. That site has definitely paid for itself more than once! (Again I say, for me.) I Imagine most people's experiences will be different. I'll let you know when our polls are up!
Wilson W, Jr.