I have a site and I was ranked position number 11 for the last 2 months. I been building links everyday, around 50-70, mix of article, forum, directory, bookmark. I have been doing this from the beginning. The keyword is in my url and my on page seo is A+. I added 3 .gov sites today and my rankings dropped to position 126. When I look at the first two pages now there are sites I have never seen and some of these sites have errors on their pages etc.. Has anyone experienced this before.