After much fruitless searching combined with the lack of a .NET SDK from SoundCloud, I wrote my own OAuth2Client for to handle authenticating with SoundCloud.
How are you using Response.Redirect(), and what are the consequences? If you use Response.Redirect(), you want to read this.
Recently I've seen multiple posts in various LinkedIn Web Developer groups about handling errors, and many comments discussed how to manually catch and log errors. Consider using Elmah instead.
Adding a modal pop-up to FullCalendar to provide the user with more information about your event is actually a very easy thing to do, and only requires two things: a custom field that will hold the extra information, and a few lines of code.
Allow users to show and hide events from your single JSON feed for the FullCalendar jQuery tool.
Stack overflow exceptions can be tricky to locate, and left unchecked they can bring down your server or cause IIS to terminate the application pool serving your site. This article covers how to locate the source of the stack overflow exception.