Here's what I got for immigration, a couple years old but would probably help you out if you went that route. My resources for the alternative fuels was all books, so puttin those up wont help you much.
“Immigrant population at record high in 2004”. Cis.org April 10 2006
Center for Immigration Studies
“Immigration in America: protests and support.” About.com April 10 2006
Immigration in America: Protest & Support for HR 4437
“Immigration reform good news for EB green card applicants.” About.com April 12 2006
Immigration Issues - By Category
“Senate approves immigration reform bill.” About.com April 13 2006
Immigration Issues - Your Guide to U.S. Immigration
“U.S. citizenship.” April 9 2006
US Immigration | Apply for Green Cards, Visas and US Citizenship
U.S. Citizenship and Immigration Services. April 11 2006
USCIS Home Page
“U.S. population facts and figures”. April 10 2006
www.npg.org/popfacts