site

There are umpteen number of sites that are popular but i feel there is only one site that is popular as well as useful it is wikipedia. the innovation is marvellous. the community knowledge centre. the idea of synergising the talent of millions was really wonderful and need to get appreciation. there may be many popular sites , sites that shows all and speaks all but you may not get anything worthwhile there . But in wiki you get anything you want. the most important point is it is free. though it is free it is not cheap. we need to appreciate the millions of contributors there and be part of that community .