Nova Spivack likes to differentiate interest networks, like Twine, from social networks like Facebook. The problem is that people also use social networks to follow their interests, especially as in the case of Twitter. The result is that if we want to follow, say, Dave Winer's thoughts on RSS, we also have to follow his interest in baseball. Microbloggers like Robert Scoble have begun to create separate Twitter accounts for their aggregation of Links and comments. Others use hash tags. But most simply continue to send all their tweets to the same into the unified stream. If Twitter had a tagging option, we could fine-tune the service to follow only Steve's RSS related tweets, and Robert wouldn't need to make all those different Twitter accounts. Twitter would suddenly become much less noisy and more useful. The same formula should be adopted by other social networks.
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