I'm checking my ranking yesterday morning (actually google analytics) and I notice the traffic has dropped from 50 daily visitors to 8! I noticed the same thing today as well.
I started investigating... turns out my competitor renewed his domain or something, his URL is: joggingbenefits .com and mine is joggingbenefits . net
When I first started, his domain was 'expired' and thus couldn't show his content, so I easily outranked him and soon he dropped out of the results entirely, and after some time, I got to #1 of google for my search term.
So, I noticed he re-activated and is ranking around 3-4 spots behind me on Google atm.
That's 1. thing I noticed - the other thing I noticed is that about 5-6 backlinks that I created were gone missing or deleted (but those were low PR0 backlinks and not many of them so I guess that shouldnt hurt the site, since I had #1 rating without them anyway).
And the third thing I did lately is that I changed a link from my PR2 page to my other inner page. BUT the page I shifted this link to is now not even in the top 250 results! And it used to rank #5 for its keyword (without the inner page PR2 link)!
All of my pages (and I mean all of them) have lost their ranking value. I've done no super-duper backlinking techniques, nor did I do much backlinking at all (1-2 backlinks/week - articles)...
Anyone guessing what this might be?
P.S: This reminds me of Google Dance, but all of my pages dancing at the same time? For a few days? Really?! + All of my pages (except one) are around 4-5 months old.