H1B is a federal corporate welfare program to address a perceived lack of homegrown IT talent. Its is a regulated and public service. Data like who is hiring and at what salaries are public. Employers do not have a right to secret salaries when using the H1B program. Download the data below and view the RatePer field for salary info:

http://www.flcdatacenter.com/download.aspx

older data here:

http://www.flcdatacenter.com/caseh1b.aspx