Being a fan of Starcraft, I just watched the OSL finals on Youtube. After watching the series, I wanted to know if there was anyone else interested so I went over to Twitter search, and looked for OSL and saw quite a number of recent tweets (if I searched before watching, the results would've been spoiled.). As a comparison point, I also googled the term OSL but nothing useful came up - it seems like the latest Starcraft video on it was 2008. I had to make my search more specific by entering OSL Jaedong Fantasy (the players) before anything useful came up.
So, at least, when real-time is very important, Twitter will almost always be better than Google.