Links:  http://en.wikipedia.org/wiki/RSS_Feed http://en.wikipedia.org/wiki/RSS_Feed  http://www.xml.com/pub/a/2002/12/18/dive-into- xml.html http://www.xml.com/pub/a/2002/12/18/dive-into- xml.html  http://www.rssfeeds.com/whatisrss.php http://www.rssfeeds.com/whatisrss.php  http://www.w3schools.com/rss/rss_intro.asp http://www.w3schools.com/rss/rss_intro.asp  http://www.go- online.gr/ebusiness/specials/article.html?article_id=1296& PHPSESSID=3125b12b3e9eda06e2a4540b2d53e79a http://www.go- online.gr/ebusiness/specials/article.html?article_id=1296& PHPSESSID=3125b12b3e9eda06e2a4540b2d53e79a  http://www.e- pcmag.gr/modules/news/article.php?storyid=880 http://www.e- pcmag.gr/modules/news/article.php?storyid=880  http://www.whatisrss.com/ http://www.whatisrss.com/  http://www.xul.fr/en-xml-rss.html http://www.xul.fr/en-xml-rss.html  http://www.webreference.com/authoring/languages/xml/r ss/intro/3.html http://www.webreference.com/authoring/languages/xml/r ss/intro/3.html  http://issel.ee.auth.gr/el/semanticweb http://issel.ee.auth.gr/el/semanticweb