I would like to asked if what is the best method in checking blog traffic? Is their any tools for it ?
you can either use Google Analytics or StatCounter Free invisible Web tracker, Hit counter and Web stats
I can recommend two free hit counters. These are Statcounter and Bravenet. You get three free ones with each of these sites. And of course you can upgrade.
They are really good, reliable and easy to install. (BTW, Bravenet is just a counter - it's a hosting company with heaps of tools, including counters. You just have to sign up and find the right section in your membership.)