Business and Economics - United States
Bureau of Economic Analysis
Bureau of Labor Statistics
Cost of Living and Salary Calculator
EconData.Net [economic time series]
Economic Indicators
Energy Information Statistics
FRASER [Federal Reserve Archival System for Economic Research - current and historical statistics]

California and Local
American Factfinder
California Statistical Abstract
Central Coast Joint Data Committee
Historical Census Browser
Race, Demographics and History in Monterey County 
RAND California

Kids Count Data Center
State of the World's Children

CSU Monterey Bay and CSU System
CSU Monterey Bay Institutional Assessment and Research
California State University System Analytic Studies

Bureau of Justice Statistics
Crime Data [California]
Crime Statistics (FBI)
Sourcebook of Criminal Justice Statistics

Condition of Education
EdData [California K-12 schools]
National Center for Education Statistics

General - United States
American Factfinder
ERsys - Quick data on 2600 US cities
Historial Census Browser
Population Reference Bureau
Social Science Data on the Net
Statistical Abstract of the United States
U.S. Census Bureau [includes American FactFinder]
Yahoo! Statistics

General - International
Infonation - View and compare statistical data for 185 UN member nations.
Nation Master - Graphically compare country data
OFFSTATS - Official Statistics on the Web
Population Reference Bureau Country Statistics
Social Science Data on the Net
UNESCO Institute for Statistics
United Nations Population Information Network
United Nations Social Indicators
U.S. Census Bureau - Links to International Statistical Agencies

California Dept of Health Statistics
National Center for Health Statistics
State Health Facts Online
World Health Organization (WHO) Statistical Information System

Facts for Hispanic Heritage Month
Hispanic Population of the United States [from U.S. Census Bureau]
Pew Research Hispanic Trends Project

Science and Technology
California Environmental Information Catalog
Earthtrends Environmental Information Portal
FAO World Agricultural Information Center
GEO Data Portal
National Agricultural Statistics Service
National Biological Information Infrastructure - Geographic Perspectives
oneFish Portal
Socioeconomic Data and Applications Center
World Ocean Atlas and Database

United Nations WomenWatch - Statistics and Indicators
Women in the United States