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[LeifW]

Would there be an easy way to add one? Do what Calagator does?

From the point of view of 3rd-party consumption of citizenry API data: I was thinking to do things like run the tags / technologies through Google Refine to normalize, categorize, de-dup, etc. Things produced like that will go out of date as epdx changes... could either re-do on the whole dataset, or add changed data.

Also, down that route at the user level could turn it into a Facebook/LinkedIn style thing - give what's new since you last signed in: "So and so's now connected to so and so", "A group you're in has a new member", etc...