My site is betaland.net with pagerank 5. I have the SERP as the periodic value. Sometimes it is No 1, but other times it is about No. 300. The traffic is shaking from 1000 to 100. And this situation has been repeated for 3 month. Anyone had the same experience? Please help me out of this problem.
What is the keyword you're talking about this post? If your rankings is going up and down, it only means you have weak rankings. My advice is keep on building links for your site and other SEO stuff and results will follow. Don't worry much about your rankings it will surely go up in the SERPs if you continue to work on your site.
Please read the post--you get your answers there-- http://forums.digitalpoint.com/showpost.php?p=3920395&postcount=1576
number 300? lol and it happens, dont worry, it could be how other sites put in more effort to get their SERPs up :/