David Eaves informed that UK based users who are trying to reach Yahoo.com now being redirected to Yahoo! UK domain.
Flyerguy a memebr of Webmaster World has also confirmed in his post that German users are also redirecting to Yahoo! German domain.
According to Barry Schwartz this has to do with Yahoo Now Showing Geo-Location Under Search Ads. Yahoo has told him that they rolled out that feature last “week with the roll out of a new “geo labels” feature.” He feels that same geo-technology was applied to this.
But in India I am still reaching www.yahoo.com domain instead of http://in.yahoo.com but last few days it is showing two search options Search Web and Search India. That wasn’t before.

If you seach with any of the option, Yahoo shows &fp_ip=IN in its search result URL. In India, www.yahoo.com is not redirecting yet but search results are fetching from Indian IP addresses.
Yesterday, Yahoo! search has released new SearchScan feature which will protect users from viruses, spyware and spam websites.
It is influenced by Macfee’s SiteAdvisor technology. This SearchScan is turned on by default for all users in the U.S., Canada, India, UK, France, Italy, Germany, Australia, New Zealand, and Spain.
SearchScan will protect mainly three types of risks: Browser Exploits, Dangerous Downloads and Unsolicited Email. According to Yahoo!:
Browser Exploits — These are sites that can stealthily harm a user’s computer or install malware simply by visiting the site. Beginning today, any such sites or pages included in McAfee’s data will be removed from search results automatically.
Dangerous Downloads — SearchScan will display warnings next to search results for sites that offer potentially dangerous software, such as viruses, spyware or adware. Users often may be unaware that these can be passed along with the screensavers, games and other software downloads.
Unsolicited Email — SearchScan will alert users to scanned sites that send unsolicited emails or inappropriately share email addresses with third parties.
It is a nice move by Yahoo! to provide safe search to its users.