The John Johnson Collection is active on Twitter: @jjcollephemera. Why not follow us? In addition to tweets of news about the Collection, the Librarian posts images and actively re-tweets information about other collections.
The John Johnson Collection Ephemera Resources blog aims to compile a useful guide to other collections, with each entry having multiple tags, such as #artists, #prints, #exhibitions, #postcards, #image galleries, #posters, #political cartoons. There are guest posts too.
And, when we have time, we post to: The John Johnson Collection: Now and Then, an occasional blog about the Collection.