More than a 1000 pages of literary material penned by 30 different authors exist all over the internet on the VDG issue. This makes it difficult to undertake a comprehensive study of the subject. Recognizing this problem, all these articles were first collected from various sources. They were then divided into various sections which delve into specific issues that constitute the VDG discussion. When you click on a particular issue, sections of articles that investigate into that issue get populated on the right side.