arXiv Developer Spotlight: Librarian, from Fermat’s Library : arXiv.org blog

"In the spirit of empowering the community, I’ve decided to start showcasing some of the cool arXiv-based projects that we’ve found around the internet. If you’ve found an app, service, widget, visualization, or anything else that uses arXiv content in interesting ways, please let us know about it! You can get in touch via the arXiv-API Google group, or at nextgen@arxiv.org."