It's going to be interesting to see how they scale. Each person has their own body of data that needs to be crawled and updated on a regular basis. Google, on

It's going to be interesting to see how they scale. Each person has their own body of data that needs to be crawled and updated on a regular basis. Google, on the other hand, has one body of data (the web) that is applicable to every user. Getting to just 1 million users will be very impressive.