Q. Where can I find data on inflation (including cost of living, CPI, PPI, etc.)?

For international consumer prices indexes, go to Business Databases: A-Z and select World Development Indicators or Economist Intelligence Unit.

For CPI Detailed Report go to CPI Detailed Report
For PPI Detailed Report go to PPI Detailed Report

Take a look at The Inflation Calculator

To calculate the worth of the US dollar from 1913 to the present, go to Federal Reserve Bank of Minneapolis What is a Dollar Worth?

For historical data, try the Current Value of Old Money