woody2000, Dobbo – Reading a book better than using Twitter?
Well that depends very much on the book, doesn't it?
Like books, Twitter is just a medium. You can read rubbish on it, or good, insightful, clever stuff. Your choice of people to follow is much like your choice of books. It's up to you.
organic355 – My recommendation is Brant. If you like his take on things, he's @shedfire. And if you don't like his take on things, you don't follow him.
(uplink – "They keep coming back"? You shouldn't have to follow anyone. If they follow you, you don't have to follow them. Check you don't have autofollow switched on.)