BizBlox is a simple to use Object Relational Mapper API for .Net. On top of the usual features you expect from an ORM it provides native support for web services using transfer objects and partial transfer objects.
PyDAO is very thin object-relational mapper similar to Hibernate (but much simpler). Created to speed-up application development. It's very simple, but powerful, based on POPO (Plain Old Python Objects). Uses DB-API to connect to SQL databases.
HierarchyObjects is a professional ORM (object relational mapper) written in C#. It uses ADO.NET and OLEDB. It is capable of loading an entire hierarchy of unique objects, do joins, and other things you might expect from a good ORM.
Torque is an object-relational mapper for java. In other words, Torque lets you access and manipulate data in a relational database using java objects. Unlike most other object-relational mappers, Torque does not use reflection to access...
jPersist is an object-relational persistence API with automatic mapping, and based on the ActiveRecord and DataMapper patterns. jWebApp is an MVC web application framework. Both are configuration and annotation free and can be learned in minutes
Data Holder object/relational mapper. Provides typed data encapsulation and database persistence for .net apps. It also contains a wizard for generating the data objects code and persistance code. Right now it has implementation only for MSQL 2000.
An Object Relational Mapper that facilitates the mapping between SQL tables and POJOs. you don't need to create XML files to describe the relation between tables and objects. try it and feel the difference!