One day, about half way through last month, there was a little tag missing from our sitemap.xml file. Google crawled it and then this happened to our search impressions:
So, be warned… if you ever get your site map wrong and Google crawls it, it will nuke you from the face of the internet. How do you recover? Backlinks are really the only way. If you fee inclined to help us regain our placements, you can always advertise us for free server credit!