Data Mining: Text Mining, Visualization and Social Media: Hyperlocal Evolution
Orthogonal to these strategies, which revolve around the nature and scale of content being created, there are those sites with look to aggregation methods across a variety of data types (from weblog feeds to traffic news streams). In addition, there are various services and technologies which can enhance the data and provide some plugin style publishing components (e.g. maps with events pinned on them) for hyperlocal sites to leverage.

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