Jivha posted an interesting piece (or was it the Kournikova stuff?) on the significance of Titles of blog-posts. I can't agree more with him. A quote from his blog:
With the increasing popularity of RSS-based newsreaders it is neccessary that the title of your post stand out from the tens and hundreds of other posts from other blogs. People will come to your blog only if they are interested in the title of your post.
As for me, half of my time in a post gets devoted to gestating a good title for it. Many would argue that the first few words of the post would suffice as the title, if your posts are more in conversational style rather than being essays or commentries, but certainly a good title makes the post appealing. Moreover, it renders a structured look to the post. But does title really matter if the topic of discussion is Kournikova?