How to diagnose a search engine ranking drop?
I wrote this guide on how to root HTC Desire, http://techspalace.blogspot.com/2011/10/perm-root-htc-desire-gingerbread-233.html .
I had been getting decent visit from Google Search and also the page use to rank in top 3 for queries relating to "perm root htc desire gingerbread".
But from last few days the comments on the post nearly stopped. Upon investigating I found that Google doesn't show my page any more for such queries.
What could have gone wrong? Can anyone please shed some light onto this.