A couple months ago, Rush Frisby, a .NET Developer have come up with a library to make it easier for .NET developers to access the thumbnail service provided by PageGlimpse. 

This library makes it very easy for .NET developers to use the PageGlimpse API. The download comes complete with an example you can use to get started. The library can also be used in other types of .NET projects, not just web apps.

This new version adds support for the new ThumbnailExists method, Proxy support and a better implementation of the “nothumb” parameter.

Take a look at http://www.rushfrisby.com/apps/pageglimpse-api-dotnet.aspx