Regular readers of this blog will know that I strongly support the use of Wikipedia (and Wikimedia generally) in teaching, and that I'm a member of Wikimedia Community Ireland . I'm still very nervous about editing, and until recently have only made very minor contributions to the online encyclopedia. It's one of my own development goals. I am completely in awe of anybody who takes on the #100wikidays challenge - to write an article a day for 100 consecutive days. I first heard of this through our community member Rebecca O'Neill, who completed the challenge in 2015. Mourning my mother through a hundred days of Wikipedia editing is another, more recent, account of the challenge. Given that I've only written one article from scratch, I'm a long way from even contemplating the challenge. However, earlier this year I saw that Rebecca had started the #100CommonsDays challenge - to upload an image to Wikimedia Commons every day for 100 days. I thought that sounded ...