Extension should note of the changes that are taking place in and around the country to improve its efficiency and effectiveness. Agriculture is moving from subsistence to market oriented farming though a large number of farmers shall be producing for their own consumption. Farmers need a wide range of information for different resource and constraint situation for production as well as for pre-production and post production functions. These require some new approaches in extension. Sustainability issues have become very important as farmers are to obtain increased return from their enterprises by preserving and enhancing their own and also country’s resources. Information technology is improving and spreading at a rapid rate. The people are also diversifying their enterprises. The author has written the book with 10 chapters and has discussed, analyzed in depth on the concept of cyber extension, expert system, persuasive communication, effect of mobile phone on society.This book may be an indispensable guide book for people and students who are related with agriculture, agriculture extension and communication in the schools, colleges and universities.