[radley]

I was trying to illustrate the cultural limitations of the big five.

Just because an app has only a slight difference (for now) doesn't mean they should be ignored or excluded. The technology of social communication today is akin to the printing press of the 15th century. We have thousands of years forward to be social, buy things, and enchant users... so why limit it to the early, myopic giants?

[mattnewton]

As long as everyone plays by the rules of a free market, or close enough, then consumer choice is what ignores the players for the superior offerings. They win if they can make a better product, and the Giants often have an easier job of making a better product because of the advantages of being a tech giant.