The SyndicationFeed class from System.ServiceModel.Syndicatation makes it easy to work with feeds and extensions. The code below uses an RSS feed from space.live.com to show photo albums on a page.  Of course there are many ways to consume RSS with and w/o code, but the WCF enhancements with .NET 3.5 are a nice new trick. You can see the result at http://www.steveres.com/SpacesPics.aspx

r = XmlReader.Create("http://yournamegoeshere.spaces.live.com/photos/feed.rss");
albums = SyndicationFeed.Load(r);
r.Close();
foreach (SyndicationItem album in albums.Items)
{

// album.links[0].URI points to this album page on spaces.live.com
// album.Summary (not shown) is an HTML block with thumbnails of the album pics
cell.Text= string.Format("<a href='{0}'>{1}</a>", album.Links[0].Uri, album.Title.Text);
albumRSS = GetAlbumRSS(album);
r = XmlReader.Create(albumRSS);
photos = SyndicationFeed.Load(r);
r.Close();
foreach (SyndicationItem photo in photos.Items)
{
// photo.Summary is an HTML block with a thumbnail of the pic
      cell.Text = string.Format("{0}", photo.Summary.Text);
}

}
//
// helper to extract the feed to one album from the albums feed
//
private string GetAlbumRSS(SyndicationItem album)
{

string url = "";
foreach (SyndicationElementExtension ext in album.ElementExtensions)
       if (ext.OuterName == "itemRSS") url = ext.GetObject<string>();
return (url);

}