How can a Ph.D. student organize his paper

Ph.D. students often read a lot of papers, and papers might of different categories. For example, I am a Ph.D. student with research area in security focusing on moving target defense, the papers I read can be divided into different defense strategy

• dynamic platforms
• dynamic execution environment 
• ...

One way to organized the paper is to use Goolge Scholar.

Maintaining papers with Google Scholar

Step 1: search the paper using google scholar, and click the "save" item, then the paper will be saved to your library.

Step 2: add labels to the paper. Click on the paper in your library, and select the label.

Benefits 

• "online-access" to it all the time.
• You can sort the papers by year.
• You can track who cite the papers and their citation number!