Here's how I broke down the research:
- Looked at coverage for all 50 states, plus the District of Columbia
- Established the year that the each state published its first official state court decision (highest court)
- Reviewed the scope of coverage for each research provider
- Graphed who had the best pre-1950, pre-1920 and pre-1899 coverage
- Graphed who had the most states where there was complete coverage of all decisions
- Finally graphed the overall percentage of state case law decisions for all 50 states and the District of Columbia
In all categories but one, Casemaker had more coverage than Fastcase, Loislaw or Google Scholar. Loislaw had five more states with pre-1950 coverage than Casemaker, but the further back you go the better Casemaker starts to look. Casemaker had over twice as many pre-1920 states than Loislaw (28 vs. 13); Casemaker had four times as many states with pre-1899 coverage than Loislaw (28 vs. 7); and Casemaker had over twice as many states with complete case law coverage (11 vs. 5). Fastcase and Google Scholar ran a distant third and fourth place with Fastcase only having 10 states with pre-1950 coverage, and Google Scholar having zero. The overall percentage of case law coverage for all states and the District of Columbia also went to Casemaker (68%).
In a market where content is king, this study suggests that of the low-cost providers, Casemaker is the king.