G-20, telecommunications, saltwater v freshwater, further than Krugman

Can you name all of the members of the G-20?

The Economist has a chart of cell phone users and internet users in developing countries. Internet access via mobile networks seems like an expensive prospect to me, for Africa.I suppose it might be cheaper than any other way of accessing the internet.

Urbanomics has a pretty good summary of the econoblogosphere saltwater versus freshwater macroeconomics debates. The conclusion: saltwater seems to be winning. I wonder what percentage of economists fall into each category, and how man "moderates" there are.

Paul Rosenberg goes further than Krugman in his discussion of the problems of macroeconomics.