So after lots of backlinks, I manage to get a site (which used to be on page 18) to be on first page for a certain keyword. My site was on position 6 about 5-days ago when I did a search for that term. Yesterday, I did a search on that term again and all the websites (including my competitors) were in chaos! My ranking became position 14 (page 2) and all the top competitors got pushed to position 7+. Then I just did a search again and everything is back to normal - i'm back on position 6. wtf?