This is definitely true. What would you rather do: buy everything from Amazon, or have a big list of distributors that you can shop and for individual categorie

This is definitely true. What would you rather do: buy everything from Amazon, or have a big list of distributors that you can shop and for individual categories like books, office supplies, electronics, etc.? Would you rather have to keep track of some of your friends on Google+, some on Facebook, some on Myspace, some on Diaspora, or just have them all in one place? There is a usability problem with distributed services in this way.