Anyone living today is probably living in one of best times of human history. No time in the recorded human history was so opportune for individuals and institutions as it is today. Today's world is full of technology and challenges. It has so many technologies available and so challenges to face that it is very interesting proposition for individuals and institutions alike. You may start with a technology of your choice and choose a problem that can be solved by the use of that technology. Companies such as Infosys, TCS, Wipro used ICT technologies to create business and generated lakhs of jobs. Companies such as Suzlon are at creating greener and safer world. Hospitals such as Apollo are busy at creating healthier India. So it looks tha all that is needed is find your "call" and go for it. It need not start big, Infosys started with 7 people in 1981 and Suzlon with just 20 people in 1995. So go ahead and find your challenge.