of traditional photo albums. The web has been a popular medium for storing and sharing photos ever since the first photograph was published online by Tim Berners-Lee in 1992 (an image of the CERN house band Les Horribles Cernettes). Today, photo sharing sites such as Flickr, Picasa, and PhotoBucket, as well as social websites, are used by millions of people to share their pictures. Digital photography and social media allow organizations and corporations to make photographs more accessible to a greater and more diverse population. For example, National Geographic Magazine has Twitter, Snapchat, Facebook, and Instagram accounts, each of which includes content aimed at the specific audiences found on its platform. Digital photography has also impacted other fields, such as medicine. It has allowed doctors to help diagnose diabetic retinopathy, and is used in hospitals to diagnose and treat other diseases. Digitally altered imagery In digital art and media art, digital photos are often edited, manipulated, or combined with other digital images. Scanography is a related process in which digital photos are created using a scanner. New technology in digital cameras and computer editing affects the way photographic images are now perceived. The ability to create and fabricate realistic imagery digitally—as opposed to untouched photos—changes the audience's perception of "truth" in digital photography. Digital manipulation enables pictures to adjust the perception of reality, both past and present, and thereby shape people's identities, beliefs, and opinions. Digital photography and social media In its early stages, photography was mainly used for physically preserving a family's heritage. It has now evolved into a key part of individual identity in the 21st century. Internet users often personally photograph and repost pictures that revolve around the ways they want to personally express themselves and their chosen aesthetic. With the invention of digital photography, photographs became less destructible and more easily maintained throughout the years, living across all types of digital devices. Digital photography advanced the use of photos for communication and identity rather than as a means of remembering. Widespread access to digital photography has greatly influenced social behavior. The phrase "pics or it didn't happen" reflects the notion that one's life experiences can only be verified by others through photographs. Filters are commonly used in social digital photography, some of which reflect the nostalgic gap left by the disappearance of film photography. Filters that emulated traditional analog effects (such as film grain, scratches, fading,