Reference sources, sometimes tertiary sources, are great for background information. This is especially helpful when you are getting started and have the following information needs:
For example, standard encyclopedias and trusted online encyclopedia like content are great for this general background research. Listed here are some resources selected based on the group topics.
Note: these resources are starting points and should not be the only resources used for your research, analysis and synthesis.
You are likely already using several quick reference tools and other sources that provide background information. For example, Investopedia.com and Wikipedia. Here are few others you might find useful.