Noisy - Social Media Highway (Is Social Media really adding value or just another bubble waiting to burst)

There is lot of noise on all social media sites/networks... and very little value for the customers... unless these networks are directly impacting the bottom-line areas for the end-user, they will be like noisy highways... does any company provide service that groups like-minded twitter-ers.... into distinct groups that can provide value for the end-user... I like cheaptweets...

Is it really easy to follow 1000s on the social media, and filter the messages that really make sense for an individual... I understand that the 1st step is to establish your presence on social media network, but whats the objective.