Synopsis There is no field like the internet and WWW explosion occurring in the modern world. Users need information. This book covers a maximum number of subjects useful for the learning communities. It’s a rare kind for any book to give so many websites so comprehensively. The definitions and abstract will give the essence of the information available in the website concerned. This handy reference will save energy, time and money spent on fruitless searches. Yes, being referential in value it can be treated as a directory of websites or self-reading material. Users will be enthused into using this book for life-long pursuit of knowledge.