I love seeing the photos get sent into the 24-hours in Flickr event. There are already more than 3,000 photos (you can only put your best photo onto the group, so that’s 3,000 separate people’s photos). If you shot a picture yesterday (May 5th) you can add your photo to this group — the best ones will be added to a book about the day.

You can see where the photos are coming from on the 24-hours of Flickr map (only photos that were geotagged will show up on that, though).