When it comes to culture, try Zappos.com for size. Former CEO Tony Hsieh explains how new employees are selected in this quite original video.
There is a bonus of 3.000 dollars if you quit and leave the company in the first weeks of training. Why? They do not want people who want to do this job just for the paycheck. 3% take the offer. They deliberately choose for this culture.
At Zappos.com they pass on smart and talented people that do not fit into the culture. Even if they are great at adding value.
They make a culture book where every employee can talk about the good and the bad.