Google today unveiled Google Sitemaps, a way for webmasters to let Google know about the files on their site as they are published. Webmasters can create a XML file describing the files available on their site and ping Google or simply ping with the location of a RSS or Atom file with each update. You can sign in to your Google account to add and track sitemaps.
Update: User-Agent seems to be new: “Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)” coming from 66.249.66.1.

5 comments
Commentary on "Google announces sitemaps, ping beacon":
Randy Charles Morin on wrote: #
404 detected. URL encoding issue.
Niall Kennedy on wrote: #
Thanks Randy. I fixed it.
Hashim on wrote: #
Google says the date is invalid when I posted mine.
Niall Kennedy on wrote: #
Google might not have accounted for “Z” to represent the same timezone designator as “+00:00″ in their code. I am outputting valid ISO8601 datetimes.
windlike on wrote: #
There’s a FAQ for google sitemaps service at https://www.google.com/webmasters/sitemaps/docs/en/faq.html , but I didn’t find an answer to an immediate question I had asked for my laptop batteries store.