This demo uses the OpenLayers GeoRSS parser, which supports GeoRSS Simple and W3C GeoRSS. Only points are currently supported. Get the code!
The above input box allows the input of a URL to a GeoRSS feed. This feed can be local to the HTML page -- for example, entering 'georss.xml' will work by default, because there is a local file in the directory called georss.xml -- or, with a properly set up ProxyHost variable (as is used here), it will be able to load any HTTP URL which contains GeoRSS and display it. Anything else will simply have no effect.