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A Brief Introduction to GPS Photo Linking (32 tags)
Digital cameras record EXIF data that tells us "when" we took a picture, but what if we want to know "where" too? Contributor to O'Reilly's Digital Photography Hacks, David Goldwasser introduces us to using GPS positioning data with EXIF timestamps to build interactive maps showing pictures of markers. What a sweet convergence of technologies.

An Introduction to Open Source Geospatial Tools (14 tags)
Geospatial professionals have been the main users and developers of geospatial applications, but the landscape has changed over the past few years as the development of open source geospatial software has matured. Tyler Mitchell introduces some of the most useful of these applications in this article. Tyler will discuss the current state of affairs in the open source geo world at O'Reilly's Where 2.0 Conference, June 29-30 in San Francisco.

The Geospatial Web: A Call to Action (12 tags)
What needs to happen to build a sustainable geospatial web? Mike Liebhold offers ten steps designed to help tap the as yet unharvested business opportunities in a geospatial web. If this topic gets your creative juices flowing, you belong at O'Reilly's Where 2.0 Conference, coming up in June in San Francisco.

GPS, Palm Pilot, OpenGL ... Let's Go! (4 tags)
Now that we've explored the devices for receiving data, let's look at using PDAs and laptops for interpreting and plotting the information.

A Design Approach for the Geospatial Web (3 tags)
Julian Bleecker describes a design approach for location-based services that is used in projects underway at USC's Mobile Media Lab. At O'Reilly's Where 2.0 Conference, Julian will be taking part in a panel discussion on the secrets behind good social mobile applications and the obstacles they face in the real world.