I was just searching on Technorati and noticed that they added another "Search this Blog" feature to search results that allows you to keyword search a specific blog from Technorati. Upon clicking the new "Search this Blog" link you get results that look like the screen-shot above (click the image above to see an enlarged view).
This feature is very similar to what it would be like to add a site search to a blog. I think I will use the new search feature greatly when blogging. Thank you Technorati and David Sifry for your continued work on improving Technorati and its feature set.