A human resources professional needs to know a lot. In addition to understanding company policies and procedures, a human resources professional also needs to know some of the laws and policies surrounding employment. And there are a lot of them. If you are looking for information about different topics related to work and HR, you can look online for some great resources.

Indeed, the Internet can be a great place to look for information — as long as you verify that it comes from a reputable source. If you have questions related to human resources, you can have them answered with a little help from the Internet. Here are 20 useful Q & A sites for human resources professionals: