- Datamath Comprehensive and detailed information on Texas Instrument calculators. Highly recommended.
- Mark's Calculator Collection large collection of calculators from a math professor in Michigan.
- Vintage Technology Museum, a UK site with excellent information about vintage calculators and radios. Highly recommended.
- www.CALCULATORS.de, site from Solingen Germany with over 2300 calculators online!
Cameras and Photography
Consumer Price Index
- Consumer Price Index from U.S. Dept. of Labor, Bureau of Labor Statistics. Go to "Inflation Calculator" to easily see what a historical price is in today's dollars.