The Khan Academy is an award winning free site with videos on an enormous number of topics. Click here for general Khan Academy information. The videos for Economics use low tech but clever illustrations to explain principles of economics. Give them a try! they are VERY popular with students.
Create an account or login using your ACC gmail address. Or jump in with the pull-down menu at Subjects at the VERY top of the first screen, then choose "Economics and Finance".
According to its 'About US' statement: "GreenBiz Group provides clear, concise, accurate, and balanced information, resources, and learning opportunities to help companies of all sizes and sectors integrate environmental responsibility into their operations in a manner that supports profitable business practices."
Prepared for the Joint Economic Committee by the Council of Economic Advisors, data is available from 1995 forward.
Library of Congress' Business and Economics Research Advisor (BERA)
An ongoing series designed as reference and research guides for subjects related to business and economics intended to serve a wide research audience, as well as to provide useful, quality information and research assistance to the interested public. Explore other parts of BERA.
United States Census Bureau
https://www.census.gov/population/international/data/worldpop/graph_population.php
World Population animation, etc.
http://WorldPopulationHIstory.org
U.S. Population statistics (from the Statistical Abstract of the United States, ended in 2012)
http://www.census.gov/library/publications/2011/compendia/statab/131ed/population.html