I thought this would be a simple google search but apparently not. What is a regex I can use in C# to parse out a URL including any query string from a larger text
Check out this guy's QueryString builder class -
http://weblogs.asp.net/bradvincent/archive/2008/10/27/helper-class-querystring-builder-chainable.aspx
Microsoft also has a UriBuilder that might help you -
http://msdn.microsoft.com/en-us/library/system.uribuilder.query.aspx