While not one of the most commonly observed holidays in America, May 2nd is a recognized holiday both in the U.S. and around the world: Yom Hashoah, the Holocaust Martyrs’ and Heroes’ Remembrance Day. If you haven’t already taken the time to remember the atrocities of the holocaust, and to give a moment of silence to both those who died in that tragedy and those who helped end it, now may be an excellent time – especially since Google has helped make observance of the holiday easier.

Google announced back in January that they would be launching a collaborative project with Yad Vashem, the center for holocaust remembrance located in Jerusalem. The project involved creating an up-to-date online display center for the Yad Vashem collections. Since the time of the website launch, Google has worked to add numerous technical features, including an advanced commenting system and a geo-location service that maps the location of origin for photos.

Users, however, have been the primary contributors, with more than 5000 comments having been added to the site since its January launch. These comments have included personal stories, additional data on the photos, corrections on the photo captions, and discussions. Many of these comments brought forth information that had never before been catalogued.

To accommodate and encourage the community spirit and the wellspring of information it’s bringing, Google has created a page dedicated to comments where individuals or groups can share stories related to the Yad Vashem collection. Further, Google set up a YouTube channel for video footage, including both an original and dubbed version of the famous Eichmann trial. On the whole, the YouTube channel stores 474 videos, with a runtime of over 400 hours in total.