Database
Database-related software; RDBMS glue, OO databases, etc. Anything that helps manage state across multiple Lisp sessions is eligible.

Relational and SQL database projects: (main topic: SQL)

ORM libraries: (main topic: ORM)

CLOS OO databases: (main topic: ObjectStore)

Structured storage/NOSQL projects: (main topic: StructuredStorage)

Simple serialization: (main topic: serialization)