You are looking to zero in closely on sources most relevant to your needs. Top of Page Print pages of possible key sources To do a thorough review of the literature, you need to work with printed copies. Research indicates that people are better able to read printed material than material on a computer monitor. Another reason to work with printed copies is that you can mark up and write notes on them. This helps you to understand the material and to make it your own.
Some web sites contain two versions of their content, one for online reading and one for printing.
The version for printing usually contains longer pages with fewer links. Examine sources carefully to determine how relevant they are to your particular topic. Pay attention to your subjective reactions. You may find the writing style or approach of one source to be preferable to another. Carefully researching a source with a different view than your own may actually make your work more credible and persuasive.