All day yesterday (Tue) yahoo email and yahoo based web sites were a nightmare. If you were to have entered "yahoo" in the search box of either www.kurrently.com or
http://topsy.com/ and on the latter one highlighted posts in the last 24hrs, you would have been somewhat relieved to read that people posts tweets and facebook comments were all moaning about yahoo.
The two sites pick up anything tweeted or facebook comments relating to the search term you enter. If you enter your home town/city you'll see what I mean.