Hi all, Iâ€™ve got some puzzling questions I can't answer, and I've been wondering if you have some ideas about them. To start with: why are social networks like Facebook and Twitter becoming more and more popular every day? Most firms feel the need to have their own page in one or more of them. â€œFollow us onâ€¦â€ is everywhere and I donâ€™t really understand why. Couldnâ€™t they just let their visitors follow them on their own site instead of redirecting them to a social network (which is someone elseâ€™s site after all..)? Am I missing something there?? Please help.