The Planning Support Systems Group of the MIT Department of Urban Studies and Planning has been developing tools to access digital orthophotos and their metadata since 1995.
This portal provides access to numerous orthophoto collections including a seamless interface to MassGIS (.5 m grayscale), the MIT ortho browser, and coastal orthophotos (1 m color).
In addition to providing access to some fine orthophoto web services, this resource has a great collection of links that will direct you to other related orthophoto colelctions and some useful tools.
About the MIT Orthophoto Browser - Through this web interface you may view a set of digital orthophotos for eastern Massachusetts at several different zoom levels, with pan, zoom, and download functionality.
HxGN Live - The Hexagon Global Network - Learn about surveying, mapping, laser scanning and geospatial solutions from Leica Geosystems. June 3-6, 2013, Las Vegas, Nevada
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