Just as "those who can, do, while those who can't, teach", those who can star on reality shows do, while those who can't start websites to land people gigs on reality shows. Let them help you get your break, at RealityWanted.com.
Started as an email list by a guy tired of hearing he wasn't "real" enough for unscripted work, Wanted just re-launched as a free resource putting reality hopefuls in front of hundreds of casting directors desperate for contestants who will get into an argument based on sluttiness or race. To register, create a profile with the basics (age, height, weight, etc), then upload a photo; optionally, you can include a video, and answer "personality" questions like "What would friends say are your worst qualities", and "Do you have a talent for making those around you feel better than you?" Interested parties either contact you directly, or post casting calls, to which you apply with a mouse-click -- instantly sending your deets to Make me a Supermodel, The Biggest Loser, or The Singing Bee w/ Joey Fatone (a.k.a. the Biggest Biggest Loser).
Ideally, a match will lead to one-on-one time with a casting director, but users have reported being funneled into open calls, where they learn another old axiom: Those with "talent" meet Hasselhoff; those without will meet lot security.