Google have started accepting floor plans of buildings. If there are plans known, this could help drop pins on spaces within buildings that are not 'street viewable'.
A manifesto for Data Visualization from the Digital Humanities Summer Institute (15) including some great tool summaries and reflections on what data visualization is and should be.
A wonderful example of digital humanities methodologies being used to aid the close reading of an individual text. By Alicia Peaker (Middlebury College) CC-BYNCSA