Deja vu with the demise of the Epic Ski Forum in May 2017, and with the same assassin!
That would be Vail. Mountain News Corp is/was a wholly owned subsidiary of Vail Resorts. When Vail bought the Epic Forum in 2012 for its URL, it was put under the umbrella of Mountain News Corp, where it survived 3 more years under benign neglect. But when Epic Forum's software platform lost support, Vail wasn't willing to spend the $$$ to migrate it to a new platform and thus killed it.
OnTheSnow did have useful information. It collected daily snowfall on an automated basis and was useful in that regard in-season if direct reporting from a ski area was missing.
Obviously in the current environment, Vail is looking to slash costs, particularly those without a direct contribution to the bottom line. So a general ski news outlet is an unfortunate casualty. But there's some karma here. No one at Mountain News Corp lifted a finger to save the Epic Ski Forum or even its archives.
I don't know what "skiinfo" is. I'm quite sure it has nothing to do with the extremely comprehensive skiresort.info, which James and I used to expand the
Worldwide Ski Map Google Earth file.