Add your photos of spring to the sum of all knowledge
The photo repository behind Wikipedia is running a photo contest themed around spring. Here's how you can join.
Switzerland’s ETH-Bibliothek is uploading 134,000 images to Wikimedia Commons
"We are trying to bring the material to where the users are": the uploads from Switzerland's largest public scientific and technical library include photos from noted aviator Walter Mittelholzer, who flew to places around the world in the 1920s and 1930s.