Example of C# code for ASP.NET: new Regex(@"https?://([-\w\.]+)+(:\d+)?(/([\w/_\.]*(\?\S+)?)?)?").Match (tweetText)
I strongly reccomend the open source Linq2Twitter library for obtaining data from Twitter in .NET applications. I use LInq2Twitter to put my tweets on my personal homepage:- http://www.timacheson.com/#twitter The server-side approach has several advantages, e.g. it will be indexed by Google and can be seamlessly cached by the built-in caching in ASP.NET for optimal performance.