With electronic search tools, you can often locate dozens or even hundreds of potential sources for your topic—far more than you will have time to read. Your challenge will be to determine what kinds of sources you need and to zero in on a reasonable number of quality sources, those truly worthy of your time and attention.
Later, once you have decided on some sources worth consulting, your challenge will be to read them with an open mind and a critical eye.
Evaluating sources for bias
Evaluating Web sources