Mike Gerra authored an in-depth report on Geo-Services: Key Drivers and Technologies and it’s impact on the travel industry. It can be purchased via Phocuswright.
The synopsis from Phocuswright:
Geographic data and maps are critical components of daily life for people and businesses alike. Today, services based on digital maps and geographic data have become embedded in modern culture. These geo-services have all been enabled by a series of underlying foundational elements, and continue to evolve as technology advances and businesses develop new applications for delivering personal services and rich experiences.