Ben Lewis. WorldMap: Infrastructure for Old Maps Collaboration. 2018 International Workshop: A Portal for Japanese Old Maps. Ritsumeikan University, Kyoto.

Devika Kakkar, Ben Lewis, David Smiley, Ariel Nunez. The Billion Object Platform (BOP): a system to lower barriers to support big, streaming, spatio-temporal data sources. August, 2017. FOSS4G 2017

Paolo Corti, Ben Lewis, Ariel Nunez. Maintaining Spatial Data Infrastructures (SDIs) using distributed task queues. August, 2017.  FOSS4G 2017

Paolo Corti, Ben Lewis, Devika Kakkar, Building SDIs and geoportals with GeoNode and a search engine. FOSS4G 2017

Paolo Corti, Ben Lewis. Making Temporal Search Central in a Spatial Data Infrastructure August, 2017. 2017 International Symposium on Spatiotemporal Computing.

Implementing an open source spatio-temporal search platform for Spatial Data Infrastructures. OGRS. Paolo Corti, Benjamin Lewis, Tom Kralidis, Ntabathia Jude Mwenda. Perugia, Italy. 2016.

HHypermap: A Platform for Building and Maintaining a Global Geoservices Registry. Benjamin Lewis, Paolo Corti. CyberGIS’16. Urbana, Illinois, 2016.

Building an Open Source, Real-Time Updated, Billion Object Spatio-Temporal Search Platform. International Workshop on Cloud Computing and Big Data (IWCCBD). Benjamin Lewis, David Strohschein, Paolo Corti, David Smiley. Fairfax, VA, 2016.

Benjamin Lewis. HHypermap: A Platform to Enable Geospatial Search. FOSS4G Conference, Raleigh, North Carolina. 2016. 

Benjamin Lewis. Intro to Global Spatio-Temporal Search: NEH Funded Enhancements to WorldMap, Live Demo of WorldMap 2.0 with a User Survey. 2016. Harvard Center for Geographic Analysis, Conference on Space, Place, and Geographic Thinking in the Humanities. Benjamin Lewis. April, 2016.

Benjamin Lewis. Keynote address, Building a Public Infrastructure to Improve Geospatial Collaboration. PA GIS Conference, State College, Pennsylvania. 2015. 

David Strohschein, Stephen McDonald, Benjamin Lewis, Weihe Wendy Guan. Investigating Hadoop for Large Spatiotemporal Processing Tasks.  American Association of Geographers. Chicago, IL. 2015. 

Benjamin Lewis. WorldMap: Platform to Support Geospatial Collaboration Digital Mapping & the Post-Removal Indigenous Midwest, University of Iowa, 2015. 

Benjamin Lewis. WorldMap: Open Source Infrastructure for Geospatial Collaboration Mid-Atlantic Geospatial Transporation Users Group. Oct 2014.

Benjamin Lewis. WorldMap: A Spatial Platform to Support Research and Collaboration. MIT Program on Information Science, Cambridge, MA, 2014.

Peter K. Bol, Benjamin Lewis, Weihe Wendy Guan. Extending WorldMap to Make It Easier for Humanists and Others to Find, Use, and Publish Geospatial Information Second International Conference on CyberGIS and GeoDesign, Redlands, CA, 2014.

Peter Bol. Collaboration and Sharing is the Promise of the Web. Shanghai Forum.

Peter Bol, Wendy Guan, Benjamin Lewis. Presentation on WorldMap. Um Al-Quera University, Saudi Arabia, 2013.

Wendy Guan. WorldMap and the United Nations Wildlife Enforcement Monitoring System (WEMS). UN Conference in Bangkok, 2013.

Wendy Guan. A Data Community in Practice, University Consortium GIS Symposium, Washington D.C. 2013.

Benjamin Lewis. WorldMap: a strategy to allow researchers to scratch their itches online thereby improving data access for all. Com.Geo Conference Washington D.C. 2011.

Benjamin Lewis, Matthew Bertrand. WorldMap Demonstration. Google I/O Conference in San Francisco, 2012.

Benjamin Lewis, Presentation on WorldMap. NEURISA Conference. 2012.