Try some of these subject headings related to specific causes in WorldCat:
animal welfare | poverty | homelessness | literacy | child welfare | family violence | health care | hunger + United States
Current scholarly articles, 100% full-text, interdisciplinary. For a video tutorial on searching Project Muse, click here.
JSTOR is a multi-disciplinary database which provides scholarly, full-text content. While coverage goes all the way back to the 19th century, be aware there is no current content for many journals.
Use these criteria
Currency: the timeliness of the information
Relevance: the importance of the information for your needs
Authority: the source of the information
Accuracy: the reliability, truthfulness, and correctness of the content
Purpose: the reason the information exists