Authors: Adam Dachis

If you want an external trackpad but aren't in the mood to pay the relatively high cost, you can make one out of paper, a graphite pencil, and an Arduino. More »

Read more: http://feeds.gawker.com/~r/lifehacker/full/~3/10Bb9_Z3P5Q/how-to-make-a-functioning-trackpad-out-of-paper