if i dont change anything in site SEO, what that can make my site down in SERP result?? thanks for reply
Tons of things. But to name a few. 1. Your competitors are building more links than you and adding more unique content. 2. Your site could have had a server problem. 3. Just normal up and down variations.
YES. PR is not just based on back links. It considers various other facts. But if you have a quality site with unique content, which users can not find any ware else, simply your PR will never fall.
ahaa.. i do some test and find some result... i put my droping site link to a few site that have PR 2-5 and in 8 hours, my site back to # 1 again, in MSN.. i think PR do effect the SERP even in MSN... thanks guys..
Agreed. The algorithms for the two processes share some similarities, so there can be a loose correlation between the two. But ultimately, your site's PR will not directly affect your ranking in the SERPs one way or another. Sam
Updated unique content with a few quality backlinks, and some time to age. Good anchor text goes a very long way.
In my opinion, only by making your site more desireable to potential link partners who value PR. No affect in the SERPs, though... Sam