ODBMS

前在ODBMS领域占据领导地位的是Versant、FastObjects和ObjectStore等几大厂商
Objectivity/DB和Intersystems Cache’
http://www.objectivity.com
http://www.intersystems.cn
http://www.intersystems.com

Open source:
Ozone : a fully featured, object-oriented database management system completely implemented in Java and distributed under an open source license. The ozone project aims to evolve a database system that allows developers to build pure object-oriented, pure Java database applications. Just program your Java objects and let them run in a transactional database environment.


DB4O : Db4o 可以儲存 Java、.NET 或是 Mono 物件，而不需要轉換成 SQL 或是其他的格式。它的目標放在即時控制系統、軟體產品和裝置，例如：行動電子設備、遊戲控制台、醫療設備和自動系統。

db4o中文版信息
http://www.db4o.com/china/

db4o Blog in Chinese
http://www.db4o.com/community/blogs/chinese/
中文讨论区
http://forums.db4o.com/forums/10/ShowForum.aspx

ODBMS.ORG :: Object Database (ODBMS) | Object-Oriented Database (OODBMS) | Free Resource Portal
http://www.odbms.org/