In the picture above see the icon of magnifying glass. I didn't have this icon before, It is indexing my files. Any idea what is it, I have maverick installed on 2 machines and both of them now have this icon.
When I click on it and search for some file, on the title bar it says "Tracker Search Tool"
It is really cool to search for files but I would like to know that if it is one of the default app, even though it was not there before nor I installed any app like this.