This Thursday, the PdF Network conference call will feature an in-depth conversation with Jacob Colker on the topic of "Mobile Volunteers: How to Harness Microvolunteering for Your Cause." Click here to RSVP.

Got some spare time? Don't want to waste it playing Solitaire and instead put it to better use? If you're reading this blog post on an iPhone, or have one, stop right now and go download the Extraordinaries new app, "Be Extra." Or, check out this (very) beta web interface, which offers the same user experience.