I actually shot this video about a month ago to help out new CloudSpokes members that don't have a Force.com background. It's useful to anyone that needs a quick overview on the Force.com platform so that they can start developing quickly.
Some of the topics it covers includes:
- Setting up a new Developer Org
- Tools, docs, etc. at developer.force.com
- Overview of the Setup section including, session tokens, personal setup, classes, visualforce pages, profiles, field level security, etc
- Setting up Remote Access to get OAuth tokens
- Overview of Standard objects and sample data
- Creating Custom objects and managing records
- Overview of the Workbench* Using the Workbench to query records with SOQL with a brief overview of relationships
