links for 2011-01-11

• How Much Is Your Tweet Worth? | Search Engine People | Toronto
  Useful piece of work on valuing tweets. $3.50 per tweet if you have 1,000 followers apparently
  (tags: twitter)
• The future of mobile tagging
  The latest in an excellent series of reports from PFSK, this one looks at the use of QR, barcodes and microsoft tags
  (tags: mobile qr)

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