Of course, you can find a great deal of information just searching keywords such as "college savings plan," "prepaid tuition programs," etc. on Google--but be sure to evaluate the site to determine its credibility by paying attention to the author, the purpose, how current the site has been updated, how accurate the information is, etc. Below are a few links to get you started.
An easy way to find government information on Google--after you type in your keywords, then type in site:gov.
Example: "college savings plans" site:.gov
Some scholarly article examples: