Three Years of DLMF: Web, Math and Search

DLMF was released to the public in May 2010 and is now completing its 3rd year online. As a somewhat early adopter of largescale MathML content online, and exposing a math-aware search engine to the public, the project encountered situations distinct from those with our previous web sites. In the hopes that our experiences may inform developers of current and future Digital Library projects, we describe some of our observations delivering MathML content and trends in both web usage and browser evolution. We will also look at the the ways our readers have used math search, attempting to assess whether they found what they sought, and ways the engine might be improved.