Tony of Positive Space has a decent conversation going in his post: 99Designs Stoops to a New Low and Attempts Propaganda.
If you have been following Positive Space for a while, then you undoubtedly know that I have a problem with both spec work and 99designs (previously sitepoint contests). However most recently the minds behind sitepoint have stooped to a new low. I say this because the article Design Contests Made Me A Better Designer that was recently published is nothing more than a piece of propaganda literature.
It’s an interesting read so check it out when you have the time.