Popfly Human style
I caught this one via JohnMont's blog where the Popfly team demonstrate how to build a Facebook mash-up using....themselves!
For more on what a mashup is, check out Eileen's blog post from BETT.
And the video of course is here - https://www.popfly.com/Videos/?video=liLiveAction (The lad with the arrow is my good friend and former UK Imagine Cup winner Andy Sterland!!)