Are you looking to find a way to ping Live.com for an updated sitemap?
Now you can!
Sitemap ping service. Notify the Live Search crawler if you change an existing sitemap, or add a new one. Use this web address format: http://webmaster.live.com/ping.aspx?siteMap=[Your sitemap web address]
That will let Live.com’s spiders know that you have updated your sitemap and they will be sure to update their database with the new pages.
Yahoo! Search is beta testing a new feature for their Advanced Search. Searching for content that is clearly labeled with a specific Creative Common License.
This is something unique that I have seen that Google has not even remotely touched on yet. Why would you want to sort by which Creative Common License is used? Simple. I would want to search by license because it would then let me know what I could use freely or what I would have to give credit to, or anything along those lines.
This is a great beta tool that Yahoo! is testing out and I hope they push it more.