Google is making it easier for webmasters to make sure their articles get on Google News with their newly-announced Sitemaps for Google News tool. Sitemaps for Google News is an XML-based, open source protocol that is supposed to allow for greater control over Google crawls as well as more useful data about what gets included and why.

Sitemaps for Google News is only for Google News publishers, and sites that are included in Google News can either use their RSS feeds or define a more specific sitemap of news articles that they want Google to index. Webmasters can specify exact publication dates and times as well as relevant keywords. This adds an extra layer of control—in addition to improved ease-of-use—on top of what is possible through the use of robots.txt to instruct Google on how to index a site's contents.

Read more: arstechnica.com 

Sitebases, the next protocol after Sitemaps
It can save the time and press for the search engine, also for the websites.
It can bring new search engine that named Search Engine 2.0.
Using Sitebases protocol, will save 95% bandwidth above. It is another sample for long tail theory.
In this protocol, I suggested that all search engine can share their Big Sitebases each other, so the webmaster just need to submit their Sitebases to one Search Engine.
And I suggested that all search engines can open their search API for free and unlimited using.