Allright guys, here in a nutshell: Domain is around 1 year old, has ca. 10000 high quality backlinks, 300 indexed unique high quality articles (I paid around 40 dollars for each since they're on pretty complex stuff), is linked in Wikipedia etc. I'd say it is definitely the most informative website on that topic and it ranked 1-3 for ALL its keywords for around 6 month. In the mid of march it suddenly lost around 90% of longtail traffic and only ranked for a few keywords. This morning I checked out my rankings and found that traffic completely disappeared - its like my site was never there. - site:domain.com still shows - typing "domain.com" -> my website doesnt show up - typing "domain" -> obviously also doesn't show up Any ideas, anyone?