For those working on the VAT issue, bookmark this page (permalink is below). It will be continually-updated to have the latest Anti-VAT materials:
Letter of Invitation for Congressmen and Senators to join the Anti-VAT Caucus
Signup sheet for candidates to pre-emptively join the Anti-VAT Caucus
Timeline of Obama Administration/allies statements on a VAT
One-page summary of everything you ever needed to know about a VAT
Seven Things Every American Should Know About a VAT
Illustration of a VAT Applied to a Loaf of Bread
As VATs rise, goverment spending rises
Tax Burdens in European Countries Ten Years After a VAT
VATs Lead to Higher Aggregate Tax Burdens
VAT Doesn't Lead to Lower Taxes on Corporate Income
VAT Doesn't Lead to Lower Taxes on Personal Income
VAT Doesn't Lead to Lower Taxes on Capital Income and Profits