Research sources for writing assignments?

[GizmoJack]

I need some help with finding research sources for writing assignments.  I can usually crank out a paper pretty quick but it often takes me weeks to cobble together enough credible sources to cite. Other than the internet and Google Scholar I don't have any good sources for research. There has to be a better way than this.  

I don't mind paying for a subscription if I have to but I don't know where to look to find the best value. All of us have to write papers with citations so any suggestions on what you guys use would be appreciated.