Twitter has improved its search speed by three times using their Java server called Blender.  The search latencies went from 800ms to 250ms. Thus, making it faster.

Do you want to know how Blender works?

Then, visit their official blog post regarding this – click this link.

For the Twitter users, it will also be three times as good as it is. There will be less appearances for the  dreaded fail whale. In short, less downtime.