http://cdn.makezine.com/make/martha/MAKE_V10_Vibrobot.pdf How-To: Build BEAM vibrobots http://blog.makezine.com/archive/2009/07/how-to_build_beam_vibrobots.html?CMP=OTC-0D6B48984890 2009-07-30 http://makezine.com/images/logos/rss_icon.jpg