Interested in the problem of feral cats? Here's a blog dedicated entirely to news surrounding the issue. Whether feral cats are part of your problem or you want to be a part of their solution, this is the place to check frequently.
(h/t Pet's Garden Blog.)
The Pet Blog has an excellent post on puppy mills here. Keep in mind that each and ever word written there applies equally to kitten mills.
An appealing face makes an impulse purchase of a pet an easy thing to do. Be smarter than that. Do your homework.