Hello all! First of all i would like to thank everyone who contributes to this forum. I have been snooping around and reading the endless amount of information on this site. This is my first post, but i hope with time to contribute more as i become more knowledgeable. I created an autoblog about a month ago. Site traffic has grown every day a little, which i was very content with. Then something happen about 4 days ago and my site traffic start growing much more faster and basically had 300, 400, 500 and yesterday about 700 unique visitors. I figured out my site was in was ranking #1 or close to it for a very popular question. Today when i went to google to look at my inadvertently rank on this question. It was not there. I thought maybe my site had been unindex. But i check and i think my whole site still is indexed. So my question is Has anyone experience anything like this? Could have some changes i did last night effect my ranking that fast? Any input would be appreciated thanks!