Behind the Scenes: Inventing Abstraction, 1910-1925. This video shows great graphics and how designers figure out how to make the complex information into compelling visuals. They talk about "the crossroads of ideas" and visualizing social networks.
Vector Art from Keep Designing. This beanstalk image makes me think about a growing plant that the EPS community can add to by designing their own vector art leaves and flowers and whatever strikes their fancy to the vines so the vines branch out and keep expanding.
This Keep Designing site is rich with ideas for using vintage and vector images, and they offer free images, tutorials, and more. What a generous, creative group.