Recently my 2 month old site Page Rank jump to 3. Its on #8 on google and the daily traffic i recieved is around 25-30.I am very confused and dazed as some of the sites which i built on the same month are still on zero.
So my question are ..
1. How did it become PR 3 in such a short span of time
2. Who gives the page rank to website. Is it google?
3.What are the criteria that is necessary to increase the PR.
I would appreciate if some warrior can reply to my questions