O/R Data mapper

Néhány igen hasznos link, különböző O/R data mapperekről Wilson ORMapper for .NET,Codus v1.2 Beta 3,LLBLGen Pro(Firebird supporttal),NHibernate, http://workspaces.gotdotnet.com/retina
Top 10 Must Have Features for O/R:
Flexible object mapping
Use your existing domain objects
Transactional operations (CRUD)
Relationships and life cycle management
Object inheritance
Static and dynamic queries
Stored procedure calls
Object caching
Customization of generated code
Template customization Mapping Tools: