I know I pinned a photography laws thing before, but I really cannot stress enough that you CAN get in trouble for using photos you've taken of people for your webpages without their permission. So many photographers seem completely oblivious to this.
Do you take pretty good pictures? If so, would you love to be able to get paid -- or even earn a full-time income -- from selling them? This post has a list of ten very reputable websites that may accept and pay cash for your high-quality photos, plus some super inexpensive resources to help you get better at photography if you're not sure your skills are up to par.