Sharepoint - An introduction to SharePoint 2010
This question has come up before. Take a look in the Related column on the right where you will find 4-6 similar questions:
- Getting started with SharePoint 2010 for SharePoint 2007 Developers
- Recommendations for SharePoint 2010 training?
- What resources would you recommend to someone who would like to learn and possibly become a SharePoint Developer?
- What technical skills do you use most when developing/deploying SharePoint?
- Intranet Design and Development Book Recommendations
Free for all:
- IT Pro: http://technet.microsoft.com/en-us/sharepoint/ee518660
- Developer: http://msdn.microsoft.com/en-us/sharepoint/ee513147
For MS Partner:
- IT Pro: Ignite Training
- Developer: Ignite Training
The Lynda SharePoint Essentials Training is an excellent starter video series for understanding the general components and concepts behind SharePoint.
Getting Started Developing on SharePoint 2010 from MSDN is an authoritative guide for fresh developers.
For an understanding more towards the business side of things, start with the Total Economic Impact of SharePoint at http://go.microsoft.com/?linkid=9730143
For workflows, when you are confident of your basic knowledge, you will want to check out the official SP 2010 Workflows Overview at http://technet.microsoft.com/en-us/sharepoint/ff819861