Packt is one of the most fast-growing and creative tech book publishers in the world. Packt Publishing provides books, eBooks, video tutorials, and articles for IT developers, administrators, and users. Founded in 2004 in Birmingham, UK, Packt’s mission is to help the world put software to work in new ways, through the delivery of effective learning and information services to IT professionals and continues to specialise in publishing focused books on specific technologies and solutions. Packt has published over 2000 books and videos so far. They supports and publishes books on smaller projects and subjects that standard publishing companies cannot make profitable.

Key Features:
+ Founded in 2004 in Birmingham, UK based company
+ Packt has published over 2000 books and videos so far
+ Focused books on specific technologies and solutions
+ Get instant access to books and videos with Packtlib
+ Packt has donated over $1,000,000 to Open Source projects 
+ Contact Packt's representative by email and get your query solved via e-mail within 24 business hours.

Packt's eBooks for free:
Packt is giving eBook free every day until 5th march. All you need to do is create a free account and read the book for free. Visit this link to get your free eBook and check packt website for more offers.

Google Earth is a application that displays a virtual 3D interactive globe, which offers users access to world-wide imagery, and a large number of location-based layers. Google Earth Pro has all the easy-to-use features and detailed imagery of Google Earth, along with advanced tools that help you measure 3D buildings, print high-resolution images for presentations or reports, and record HD movies of your virtual flights around the world. Google Earth Pro for everything from planning hikes to placing solar panels on rooftops.

Key features of Google earth pro :
+ Create videos in Google Earth Pro that can be shared
+ Exclusive Pro data layers: Demographics, parcels, and traffic count
+ Measure distances/areas using lines, paths, polygons, circles, and more.
+ Print high-resolution Images up to 4800×3200 px resolution
+ Easily import data and style it based on important criteria
+ Map multiple points at once 

Google earth pro for free :
Google has made Google Earth Pro free which was previously $399 per year. You don't need to signup for Google earth pro just download it, sign in and use GEPFREE to finish installation and activate it. Refer to Google support for help.