Contact information for ALL U.S. Representatives http://www.house.gov/representatives/ Works best to contact your state representatives. There is something of a filtering out of those who are not from the state of the representatives contacted, by the representatives mail handlers. And this regardless of the representatives working in different federal level committees that effect us all. They seem to have a filtering system excuse of ignoring the people.

Tax Collection Around the World https://taxfoundation.org/publications/international-tax-competitiveness-index/

In the United States, where taxes come from and go to http://usafacts.org/ Needs to tie to online accessible government documents so to put the responsibility for the information accuracy on the government, not the interface developers outside of government.

Potential ways of using taxes http://www.unesco.org/education/tlsf/mods/theme_a/interact/www.worldgame.org/wwwproject/ and also geni.org