While the databases are very helpful for gathering news and background information, they are less likely to provide access to statistics, polls, and information produced by the government and non-profit organizations. Sites in any of those categories would be good to consult for this project.
Statistics/Polls: PEW Research Center & Gallup Polls
Government sites: any website ending in .gov
Non-profict organizations: Is there a non-profit associated with the topic you're researching?
Whichever site you choose should be current, authored by an expert in the field, and should provide good evidence for the views it presents.