How would you create an RSS feed in ASP.NET 3.5 using C#?
What framework pieces would help in making the publishing of an RSS or Atom feed easier for the .NET developer?
Are there any extra features in .NET 4 to make this task easier than in 3.5?
There's a new namespace for this in 3.5 called System.ServiceModel.Syndication.
Kevin Miller has a great writeup on this, not a whole lot too it with the new namespace, check out the article, no need to repost here, example code is much easier to look at in my opinion.