Disclaimer: I run learnivore.com (and nodecasts will appear up there). For most people who appreciate screencasts (I surveyed my ~ 1500 users), it's mostly a c

Disclaimer: I run learnivore.com (and nodecasts will appear up there). For most people who appreciate screencasts (I surveyed my ~ 1500 users), it's mostly a casual way to get familiar with a given subject before diving into it through books or articles or blogs, or a way to keep up to date (eg: railscasts). It seems to be really appreciated while commuting, for some reason. But there are also people that cannot stand screencasts at all, too. At the end, I believe it's really more a supplemental format, yes.