Puzzle Hunt Calendar

The Puzzle Hunt Calendar is a website that lists puzzle hunts, and is currently the de-facto website for most puzzling event notifications. Any hunts, recurring game events and similar are listed on the website, often first announced there.

The website is found at http://puzzlehuntcalendar.com/ and is maintained by Dan Egnor. The website also includes a "Planning Cabal" who helps schedule for date conflicts for unannounced hunts.