This service is the converter from RSS/Atom/CDF syndicated feeds to Sitemap protocol.
It uses Universal Feed Parser so it can handle RSS 0.90, Netscape RSS 0.91, Userland RSS 0.91, RSS 0.92, RSS 0.93, RSS 0.94, RSS 1.0, RSS 2.0, Atom 0.3, Atom 1.0, CDF feeds and several popular extension modules (for more information see Universal Feed Parser documentation).
For more information about Sitemap & Cross Submit see here.
Usage: http://feed2sitemap.appspot.com/converter?feed=FEED_URL where FEED_URL is an http or https URL of feed.
Author: Andrey Khoronko (blog).