Anito.net is an under development, simple, open source Object Relational Mapping framework for .Net that aims to speed up database-driven development through reusable patterns and database independent solutions. Supported database MS-SQL, MySQL, SQLite and MongoDB

CoolStorage.NET is a fully typed Object Relational Mapping library for .NET 2.0. Advanced use of generics make this ORM library extremely intuitive to use. As of May 1st, 2009, this project has been moved to the Vici Project (www.viciproject.com)

Just as the name, it's an data access component. It provides a library of classes and a tool, using it in .net project can make data accessing more easily.

DbEntry.Net (Leafing Framework) is a lightweight, high performance ORM compnent for .Net. It provides MVC, IoC framework as well.

A collection of cross vendor database interface classes for .NET written in C# providing a consistent and simplified way of accessing SQL Server, SQL Server CE,Oracle,Access,Access 2007,MySql,DB2,Visual FoxPro,dBASE,Paradox,Pervasive,Firebird,VistaDB and Postgresql databases.

A simple to use Micro ORM with a great fluent API that makes it simple to select, insert, update and delete data in a database. Supported databases: Microsoft SQL Server, MS SQL Server Compact, MS SQL Azure, Oracle and MySQL.

Extremely simple yet powerful ORM that extends DbConnection and DbTransaction. With IvyORM boilerplate code is reduced while keeping SQL a first class citizen.

The OpenNETCF.ORM library is a lightweight object-relational mapping framework designed for use with the .NET Compact Framework, the full .NET Framework and Mono for Android (a.k.a. MonoDroid) and Mono for iOS (MonoTouch). The framework is extensible to allow any type of backing store. Implementations using SQL Server Compact and SQLite are provided.

Database access that just works

Stormy is a powerful Micro ORM (object relational mapping) for C# in 327 lines of code

.NET application framework for creating data-connected applications.