<http://schema.org/description>
"This is great! Rather than wait for all the RSS Aggregators to properlyuse the If-Modified-Since header, implement it on the server instead viaan IP address and User Agent combination. Now your first thought isprobably \u201CWait, that\u2019s not perfect. What about users of internetproviders such as AOL which uses a shared pool of IP Addresses?\u201D"^^<http://www.w3.org/2001/XMLSchema#string>
<http://haacked.com/archive/2004/12/08/bandwidth-gobbling-rss-aggregators-foiled.aspx/>