Most literary scholars know about the fabulous online editions of Blake, Rossetti, and Whitman, but in my experience many people who use these editions regularly don't yet know about Collex, "an open-source collections- and exhibits-builder designed to aid humanities scholars working in digital collections or within federated research environments like NINES." NINES is an acronym for Networked Infrastructure for Nineteenth-century Electronic Scholarship; it links together many important 19thC digital editions.