Really Simple Syndication (RSS) is a lightweight XML format designed for sharing headlines and other Web content. Think of it as a distributable "What’s New" for your site. Originated by UserLand in 1997 and subsequently used by Netscape to fill channels for Netcenter, RSS has evolved into a popular means of sharing content between sites (including the BBC, CNET, CNN, Disney, Forbes, Motley Fool, Wired, Red Herring, Salon, Slashdot, ZDNet, and more).
Can you see that funny looking white square with black dots, that is a 2d barcode, a picture that most modern mobile telephones will understand. Scan the picture with a mobile phone and will get the url of the rss feed directly in your mobile phone, without having to write it.
The OneManOneWorld project has rss incorporated for both providing and reeding.