It begins from my curious of site referer over times on Blognone.com. But in the end, I found out some interesting remarks. (Click on each picture to enlarge, all statistics are from 1 Jan 08 till today (28 Jun 09)
Top of refering site is Google. Growth on "visits" is steady and reflects the same ratio in total growth.
Pantip, one of Thailand's biggest site, ranks #5 on the list. The pattern of traffic is expected: a random spike load.