This document provides an overview of different types of data sources that are useful for economics research. It discusses the key attributes of data sources, including their format, time series frequency, geographic scope, and units of measurement. It also outlines some important abstracts and indices, subscription databases, and free web databases that can be used. Key resources highlighted include FedStats, LexisNexis, Statistical Abstract of the United States, the US Census Bureau, Bureau of Economic Analysis, EuroStat, OECD, UN databases, and others. Contact information is provided for getting help with specific data sources.