Geotools.Net
Geotools.Net is a set of .net class useful when handling geographic information. The project started as port from Java to C# of JTS 1.2. It implements the following OpenGIS specifications:
* Simple Features specification.
* Coordinate Transformation Services
Other features include:
* ability to read and write well-known-binary
* ability to export features to SVG
* ESRI shapefile import and export
Go to http://geotoolsnet.sourceforge.net/Index.html
See also these related projects.