Is this really a contest? Is looks more like you are too lazy to create original content and/or too poor to hire a writing review staff for your site. The prizes aren't very interesting and even if someone does write for you, they only get a possibility of getting anything. Not to mention they would have to give you their address to get it, which i doubt many people on this site would ever want you to have their address. If you had better prizes people might want to do this. Maybe you should ask your local business association if they think your promotional event could need some help, take a marketing class or even hire someone else to run this contest for you. No offense but you are like a football coach trying to be polite and not really a likable head of your company or whatever it is you do. Just a thought from someone with a degree