Does anyone know websites that looks like www.rentacoder.com?

I started programming when I was 17. The language that I learned was C. At first it was difficult to learn C but later on through constant practice I started to love C. But, I don't consider myself as an expert in C because there are still many things that I want to learn. Currently, I also know visual basic 6 and HTML. I wanted to concentrate myself on the learning more about C but because of different circumstances that came later in my life I haven't got the chance to practice. -- modified at 21:26 Monday 4th December, 2006