Reference
Contact
One address, read by a person. Corrections to a figure are the most welcome thing that arrives here — every number on this site is derived rather than copied, which means a mistake is ours to fix.
hello at databaseball dot io
If you are writing about a specific number, the page it appears on and the season are usually enough to find it. The methodology sets out how each statistic is computed, and the glossary defines the terms; between them they answer most of what gets asked.