Harvard Map Collection:

Harvard Map Collection on Instagram, Facebook, and Twitter

Harvard Map Collection

Harvard Geospatial Library

My Affiliations:

Boston Map Society

International Society for the History of the Map

MLA

C19: The Society of Nineteenth-Century Americanists

SEA: The Society of Early Americanists

Some Map Links

Map History

Map Room Blog

Old Maps Online

Radical Cartography

Lovely Research Institutions:

American Antiquarian Society

John Carter Brown Library

Samuel P. Hayes Research Library

Massachusetts Historical Society

Databases of Teaching Techniques and Lesson Plans

ABLConnect is a great initiative through Harvard that aggregates examples of "active learning." You can see some of my contributions, in the Exit Poll and my Segregation Academies section activity.

Many of the protocols from the National School Reform Faculty can easily be tweaked into engaging class activities. 

And, for any fellow recovering math nerds that have stumbled along:

Euclid the Game!