Unfortunately Yahoo have dropped various services of late, their own photo sites, Briefcase, Blog site and in October 2009, their free web hosting service.From January 2010 mobile site Yahoo Go ! is also to end.

Now MyBlogLog is to be discontinued, thus:

You have been identified as a customer of Yahoo! MyBlogLog. We will officially discontinue Yahoo! MyBlogLog effective May 24, 2011. Your agreement with Yahoo!, to the extent that it applies to the Yahoo! MyBlogLog, will terminate on May 24, 2011.  

Try this site:  http://everything.yahoo.com/