The Prudent Investor submits:
This blogger is proud to have become part of a web-ring of select and motivated economists initiated by blogger pal Edward Hugh. Ed applies Facebook's advantages so one can read all realtime arguments or comments on macroeconomic issues on one page instead of having to open numerous emails (yesterday, 400+.)
Although I am a bit wary of social networks due to concerns that Cryptohippie has perfectly summarized in this brilliant article on privacy in cyber age ((PDF)), I like the limit of 50 words as this forces one to be concise to the max.
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