IRS: Earned Income Tax Credit
IRS document providing qualification details and FAQs.
www.irs.gov/individuals/article/0,,id=96456,00.html
EITC Overview
Features an overview of the Earned Income Tax Credit. An official IRS page.
www.irs.gov/individuals/article/0,,id=96406,00.html
Tax Credit Resources
Provides detailed information about federal earned income tax credits (EIC or EITC) as well as child and some state earned income tax credits.
www.taxcreditresources.org