I see News.com have a story showing that Yahoo! are beta testing a blog search application in their Korean Yahoo! site.

Apparently Yahoo is planning to begin testing the same capabilities for its U.S. blog-publishing service in the coming weeks.

This is all very timely considering Dave’s taking me to task for dismissing Yahoo! recently! It does indeed look like they are innovating – with Technorati announcing it is now indexing 14.2 million blogs, the ability to search blogs is rapidly becoming vital for the mainstream search engines.

What is still not clear is if you will be able to subscribe to an rss feed for the search, in the same way you can with Technorati (and more recently MSN Search) – if it doesn’t have this functionality, the Yahoo! blog search will be a lame duck compared to its competitors.