SharePoint-Videos.com offers a number of their training videos for free, in addition to their paid offerings.  One thing you'll apprciate about these videos is their viewing quality, with crisp clear screen capture far exceeding what you'll find in YouTube training videos.

A few training topics of particular interest to Formotus users:

• Exploring a SharePoint Site
• Navigating Office 365
• Introduction to InfoPath 2010
• Publish InfoPath form to Form Library in SharePoint
• Introduction to SharePoint Designer 2010
• Creating a Workflow on a List using SharePoint Designer 2010

These are all about SharePoint/InfoPath 2010, but there are others about the 2007 edition.