1. Introduction2. Basics of Global broadband wireless access: Architectures for worldwide access and connectivity3. Last Mile Problem re-visited with potential solution for broadband connectivity4. Fundamentals of Free Space Optical Communications Systems, Optical Channels, Characterization and Network/Access Technology5. Some related technology concepts to enhance optical wireless link connectivity6. OWC links between Single and Multiple Platforms (UAVs, Balloons/Drones/HAPs, Satellites): Performance Analysis7. OWC/FSO Communication System for Global Internet Connectivity/access: System concept, analysis and architecture8. Principles and Implementation of Secure Optical Wireless Communications9. Recent Developments of Satellite-based Laser Communication10. Free Space Optical Communications: role and integration with Internet of Things (IoT)11. Potential Applications for broadband global connectivity12. Conclusions