these are good slides. just realized that buyosphere is the same as pinterest.

one succeeded and one didn't (or maybe hasn't yet?). my first observation about buyosphere is that the name itself drives users away. to the user, it kind of sounds like spam, a site where they have to buy stuff.

and..."pinterest" is resonates better with the user.

so give a choice, i'd probably choose pinterest, even though the two sites you could say are similar.