Tutorial for Slack, an Online Messaging Tool Designed for Team Collaboration, by Shannon McDonough and Alison Mitchell. (Click through to view on Voicethread.)

Content Management Systems:
Interwoven, Ingeniux, BigTree, WordPress, Sitecore

Graphic Design Software:
Adobe PhotoShop, Illustrator

Markup Languages:
Basic HTML/XML/CSS

Production:
Video and audio recording; editing with iMovie and Audacity (learning FinalCut)

Time, Budget, Expense, Project Management, Online Collaboration:
Harvest and Asana, Basecamp, Podio, Zoho Projects, Slack

Other:
Digital asset management (DAM) systems, i.e. Cumulus, Portfolio; Database apps; all MS Office/iWork, etc.