This is a great guide to taking notes for research papers. Keep in mind that while he uses MLA citation format, you may need to use APA, Chicago, or another style
Use a spreadsheet. Everyone has a different process, but you may find it helpful to keep your research all in one place using a spreadsheet. You will need to make a copy of it to use it. You can do this by signing in when it prompts you, clicking on FILE, and then clicking on MAKE A COPY.