Congressional Apportionment
Information on apportionment of the U. S. House from the U. S. Census Bureau.

Census 20000 and the Congressional Apportionment
This page at the U. S. Census Bureau web site is devoted to the 2000 census and the resulting re-apportionment of the U. S. House of Representatives.

Introduction to the Paradoxes of Apportionment
A discussion of the paradoxes that can occur with various apportionment methods.

Information on apportionment for an undergraduate course in discrete mathematics. Look in Miscellaneous Extras to find a table showing apportionment of the U. S. House by various methods.