Here's my list of SharePoint 2013 Beta 2 learning and training resources. Theses are the videos/labs/documentation I'm reading myself to skill-up on the new version.....
PS SharePoint 2013 Beta 1 was only made available to a limited set of customers and was not publically available.
Most of these came from an internal source @MS thus saving me loads of time!
Basics
Download it: http://www.microsoft.com/office/preview/en/try-more-products
Main TechNet Documentation: SharePoint2013 Preview
Building a developer machine: http://msdn.microsoft.com/en-us/library/fp179923(v=office.15).aspx
Training
SharePoint 2013 training for IT pros
SharePoint 2013: presentation: IT pro training
SharePoint 2013 Developer Training
MSDN & TechNet Articles
Changes from SharePoint 2010 to SharePoint 2013 Preview
SharePoint 2013 Technical Library in Compiled Help
Test lab guides for SharePoint Server 2013
Start building apps for Office and SharePoint
What's new in authentication for SharePoint 2013 Preview
What's new for Business Connectivity Services in SharePoint 2013 Preview
What's new in e-Discovery in SharePoint Server 2013 Preview
What's new for mobile devices in SharePoint 2013 Preview
What's new in records management and compliance in SharePoint 2013 Preview
What's new in business intelligence in SharePoint Server 2013 Preview
What's new in social computing in SharePoint Server 2013 Preview
What's new in web content management for SharePoint 2013 Preview publishing sites
Architecture
Topologies for SharePoint 2013 Preview
Databases that support SharePoint 2013 Preview
Design Sample: Corporate Portal with Host-named Sites for SharePoint Server 2013 Preview
SharePoint 2013 Preview: App Overview for IT Pro
Design Sample: Extranet with Dedicated Zones for Authentication for SharePoint 2013 Preview
Search architectures for SharePoint Server 2013 Preview
Enterprise search architectures for SharePoint Server 2013 Preview
Design Sample: Corporate Portal with Path-based Sites for SharePoint Server 2013 Preview
Upgrades
SharePoint 2013 Preview Upgrade Process
SharePoint 2013 Preview: How to Test Upgrade
Upgrade worksheet for SharePoint 2013 Preview
Books
Deployment guide for SharePoint 2013 Preview
Backup and Restore
Backup and restore: SharePoint Server 2013 Preview
Back up and restore planning worksheet
Samples
Apps for Office and SharePoint Samples
Known problems in the Beta 2 release
SP Server: http://officepreview.microsoft.com/en-us/help/sharepoint-server-2013-known-issues-HA102919021.aspx?CTT=5&origin=HA102901439SP Foundation: http://officepreview.microsoft.com/en-us/help/sharepoint-foundation-2013-known-issues-HA102919008.aspx?CTT=5&origin=HA102919021Office 365: http://officepreview.microsoft.com/en-us/help/office-365-known-issues-HA102919011.aspx?CTT=5&origin=HA102919021
Thanks for sharing this.
Cheers :)