CoolerTalk

In short, it is the GlassDoor for contract jobs. CoolerTalk provides a platform for contractors to anonymously post reviews, pay rates on the clients they worked with. The site helps people looking for contract jobs gather information about how much they can expect and how the work environment will be while working for a client as a contractor. Unless the contractor knows someone who worked at that client, this information is usually not available. People tend to change contract jobs more frequently than full-time job holders and this information is available only for full-time jobs through GlassDoor.