I wrote a quick tutorial on how to get started with Linq2Rest on my site.
In short, in your web application, if 'source' is an IEnumerable, then it can be filtered using:
#!c#
var filteredSource = source.Filter(Request.Params);
To set up a client read Peter Goodman's post on how to use Linq2Rest as a client for a WebApi service.
Have fun!
