"As its founders confirm, Twitter 'tells people what they need to know and what they want to know and hopefully not much else'. It's the satnav of the Internet, directing you in the direction you need to go, no maps, no detours, and no arguments over lefts and rights. In an arena which used to depend on hard graft, manic PR machines and heavy spending on advertising and merchandising, platforms such as Twitter are paring the whole process of promotion back to the bare essentials - peer-to-peer recommendation. Like a satnav, such direct marketing might be effective, but I query whether it's as exciting a journey."

Eye Blog

"With groups, lists and niche networks becoming more popular, networks could begin to feel more "exclusive." Not everyone can fit on someone's newly created Twitter list and as networks begin to fill with noise, it's likely that user behaviour such as "hiding" the hyperactive updaters that appear in your Facebook news feed may become more common. Perhaps it's not actually less social, but it might seem that way as we all come to terms with getting value out of our networks - while filtering out the clutter."

Harvard Business