Pro-Immigration

Center for Immigration Studies - Pro-immigrant, low-immigration think-tank which seeks fewer immigrants but a warmer welcome for those admitted.
The Economic Consequences of Immigration into the United States - Argues that Immigration is economically beneficial; advocates unrestricted immigration but finds it politcally unpalatable.
The Immigrant Workers Freedom Ride - Chronicles the 2003 Freedom Ride with photographs and video clips.
Immigration: The Demographic and Economic Facts - Online book by Julian Simon describing the positive effects of immigration.
ImmigrationDebate.Com - Discussion forum. Webmaster advocates increased immigration.
National Immigration Forum - Advocates and builds public support for public policies that welcome immigrants and refugees to the United States.
Visa-Free International - Argues for elimination of visa duties and restrictions.