Applying the CRAAP Test:
Your research question is, "What are the social benefits and liabilities for tribes developing casinos on Indian reservations?"
1. Select the source which would likely be more current for your topic.
Correct. Internet resources like Pechanga.net are generally more current than books; a Web site should indicate the date it was last updated.
2. Which database would be more likely to point you to articles relevant to your topic?