More information on building a database is available from following tipsheets in the IRE Resource Center:
Tipsheet #806. Handout includes "Ten Commandments of Building Your Own Database" and advice from Jeffrey Meitrodt, Carolyn Tuft, and David Washburn. Also available on audiotape by calling (303) 649-1811 ($11).
Tipsheet #948. "Frugal and Proud of Frank Krummer explains how to stretch a CAR budget by sharing data with organizations and building databases from Web sites or NICAR sources.