Four short links: 22 July 2009

Augmented Reality, A/B Psych, Open Source Heartbeat, Launchpad Launches

  1. ARtisan — AR Flash library, the fastest and easiest way from point A to point B in browser based augmented reality. Love the demos on the home page. (via and bjepson)
  2. How to Increase Sign-ups By 200% — A/B testing from 37Signals showed that “See Plans and Pricing” got twice the clickthroughs of “Free Trial!” and variations thereon. (via kathysierra on Twitter)
  3. Open Source Heart Monitor, Possible Blood Sugar Level Detector — another step forward in sensor networks and personal data: I’ve set up a quick prototype of a device that will monitor my heart rate while I sleep. It includes a BUGbase + BUGvonHippel module (from my company Bug Labs). I’m also using a custom module we put together that uses a Polar radio receiver (from Sparkfun) and a Polar strap that I wear around my chest. Lastly, we wrote a simple program that runs on the BUG to log the data. (via chr1a on Twitter)
  4. Launchpad Opensourced — Canonical’s code hosting and collaboration platform that was heavily lusted after in the open souce world, finally open sourced and in its entirety. GNU Affero license.
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