Can\'t get any result in feeds. feedXML has the correct data.
XDocument feedXML = XDocument.Load(@\"http://search.twitter.com/search.atom?q=twitter\");
var feed
You need to specify a namespace on both the Descendents and Element methods.
XDocument feedXML = XDocument.Load(@"http://search.twitter.com/search.atom?q=twitter");
XNamespace ns = "http://www.w3.org/2005/Atom";
var feeds = from entry in feedXML.Descendants(ns + "entry")
select new
{
PublicationDate = entry.Element(ns + "published").Value,
Title = entry.Element(ns + "title").Value
};