The Microsoft ASP.NET team have released a pretty nifty add-on toolkit for VS 2005 ASP.NET 2.0. Scott Guthrie has a nice step by step pictorial tutorial on his blog.
The RSS toolkit includes support for consuming as well as publishing RSS feeds in ASP.NET applications.
RSS Data Source control to consume feeds in ASP.NET applications
Caching of downloaded feeds both in-memory and on-disk (persisted across process restarts)
Generation of strongly typed classes for RSS feeds (including strongly typed channel, items, image, handler) based on a RSS URL (the toolkit recognizes RSS and RDF feeds) or a file containing RSS definition. Allows programmatically download (and create) RSS channels using strongly-typed classes.
Support for generation of RSS feeds in ASP.NET application including:
RSS HTTP handler (strongly typed HTTP handlers are generated automatically by the build providers) to generate the feed.
RSS Hyper Link control (that can point to RSS HTTP handler) to create RSS links
Optional secure encoding of user name into query string to allow generation of personalized feeds
Set of classes for programmatic consumption and generation of RSS feed in a late-bound way, without using strongly typed generated classes
The toolkit is packaged as an assembly that can be either placed in GAC or in the "bin" directory of a web application. Full source code is included in the package. Download it now.