I use RefWorks to keep my readings together - it allows me to jump back to the original material. The issue with using Google Scholar is that you may come across a resource that looks good, but you can't access it because it belongs to another university. Make sure that you link GS to your own institution. As an academic librarian, I'd encourage you to make use of library resources, print and electronic - use your library's resource discovery tools, speak to your librarian. We're usually pretty helpful creatures!
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