On the use of abstract hashtags:

2. The use of hashtags is so important an issue in a time like this, I believe there needs to be serious thought given to developing suggested standards for emergency-oriented hashtags. Over the past two days I’ve seen a wide variety of Nashville flood related hashtags. Some of the most helpful information was being tagged with a very “inside baseball” tag local Twitter users may have understood, but not casual users of Twitter or those in other cities seeking information about loved ones.

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Amen.