The John Carter Brown Library has just opened a new exhibition "A Conversation with Maps". It has many examples of historic maps created during the period of European expansion. If you can't make it to the Library for a visit, the exhibit is also offered on-line here.
If you utilize netCDF files in ArcGIS, you'll know that at times they can be a bit difficult to deal with. I found a free utility called Panoply (https://www.giss.nasa.gov/tools/panoply/) which will allow you to explore a netCDF file before bringing it into ArcMap. Panoply will enable you to review the variables and time dimensions that are contained within the netCDF file and perhaps give you a better sense of what you are seeing when you open the netCDF file and work with it in ArcMap.
After a long hiatus, the RIGIS Executive Committee has decided to bring
back these User Group Meetings in order to provide a mechanism for GIS
users across the state to share their work and ideas, and network with
The next meeting will be held on February 2, 2010 from 1pm to 4pm at Bryant University. More details about speakers / topics coming soon.