This is the online version of a print resource, updated regularly. Very authoritative. Cites state statutes.

Monitored by lawmakers and attorneys across the 50 states, this site is an authoritative source of comparative state laws and policies.

Provides state policy information topically and regionally. Broad topic include economics & finance, education & workforce, elections, energy & environment, federal affairs, health, international, interstate compacts, public safety & justice, and transportation.