As explained in this article from my hometown newspaper, the American Radio Archives and Museum is a "a still-growing collection [of radio broadcasts] that began in 1984 and now boasts some 30,000 audio recordings, 40,000 scripts and 150,000 photographs." It's especially focused on the "Golden Age" of radio from the 30s and 40s, before television became dominant, and is "one of the largest radio broadcasting collections in the world."
An interesting piece of news came up on my feed today about King County Archives using the social media platform Pinterest in order to spread awareness of their historical photos to a wider audience. They established different boards, each with dozens of photos from their archives "ranging from old maps to artwork to images of the 1962 World's Fair". Considering we just discussed archives and the way they approach digitization of their work, I found this to be an interesting convergence of what we covered in class with a contemporary social media platform.