Adobe FormsCentral Teaser Videos
Adobe FormsCentral "product feature" demonstration videos

See them all at the Adobe FormsCentral web site:
http://www.acrobat.com/formscentral/en/tutorials

A brief, upbeat product demo spotlighting how easy it is to use Adobe FormsCentral to quickly create web forms.

Here's an example of the attachment feature, launched December 2011. It's a snap.
Adobe FormsCentral features page