Thanks to Helen Nicol blogging CommonCraft's excellent video-shorts...

All three of their "plain english" videos here for those of you  who suffer with corporate Youtube filters, and below for those of you who don't!

[youtube=http://www.youtube.com/watch?v=-dnL00TdmLY]

[youtube=http://www.youtube.com/watch?v=6a_KF7TYKVc]

[youtube=http://www.youtube.com/watch?v=0klgLsSxGsU]