.NET中现有的 ORM 工具
转自http://huqingyu.cnblogs.com/archive/2005/08/29/225444.html，收藏慢慢研究
.NET Persistence
CodUS
BizBlox
DataObjects.NET
Data Tier Modeler for .NET
DotNorm
DooDads
Eldorado.NET
Enterprise Core Objects (ECO™)
Entity Broker
eXpress Persistent Objects for .NET
Genome
Gentle.NET
最新版：1.2.5，发布日期：2005.7.15
下载:http://easynews.dl.sourceforge.net/sourceforge/gopf/Gentle.NET-1.2.5.zip
JC Persistent Framework
LLBLGen Pro
ModelWorks
Nhibernate
Neo
Nolics.NET
Norm
Norpheme
ObjectBroker
ObjectPersistor.NET
ObjectSpaces
ObjectSpark
Objectz.NET
OJB.NET
OPF.Net (Object Persistent Framework)
ORM.NET
Olymars
Pragmatier Data Tier Builder
Sisyphus Persistence Framework
TierDeveloper
Versant Open Access
Wilson's OR Mapper
其它框架
Data Access Library
Data Access and Transaction Framework
Unified DataAccess Framework
Provider Factory
Generic ADO.NET
Abstract ADO.NET
比较多的是商业软件，开源的很多不成熟。
另外：
http://www.cnblogs.com/huqingyu/archive/2004/07/29/28263.html
http://www.cnblogs.com/ccBoy/archive/2004/07/25/27158.html