Guidance and Best Practices

Data Storage Changes for SharePoint 2010
With the release of SharePoint 2010 SP1 and some new guidance Microsoft is changing the supported data size limits for SharePoint content databases. Prior to SP1 the content database limit was 200 GB for collaboration and 1 TB for document archive. The content database size includes both metadata and BLOBs regardless of where the BLOBs are located and use of RBS does not bypass or increase these limits.
http://sharepoint.microsoft.com/blog/Pages/BlogPost.aspx?pID=988

Project Professional 2010 and SharePoint Online in Office 365
Learn how project managers can collaborate with teams to share schedule details quickly with Project Professional 2010 and SharePoint Online task list synchronization.
http://blogs.msdn.com/b/project/archive/2011/06/29/microsoft-project-professional-2010-and-sharepoint-online-in-office-365.aspx

White Papers and Articles

Security in Office 365 white paper
This white paper provides an overview of the security practices and technology that support enterprise-grade security in Office 365 for businesses of all sizes.
http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26552

Customizing SharePoint Online with SharePoint Designer 2010
This is a whitepaper I (Asif Rehmani) wrote for MSDN. It was released in August 2011.
http://msdn.microsoft.com/en-us/library/hh428136.aspx

Managing multi-terabyte content databases with SharePoint 2010
This white paper provides guidance about capacity management, performance, and data protection for SharePoint environments that have large content databases.
http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26700

Webcasts and Videos

TechNet Webcast Recording: Talk TechNet with Keith Combs and Matt Hester – Episode 47: SharePoint with Jason Kaczor (Level 200)
orginally held on 8/3/2011 9:00 AM Time zone: (GMT-08:00) Pacific Time (US & Canada)
Jason is a Microsoft SharePoint MVP focused on architecture, implementations, governance, and best practices. He has been providing technical solutions to business problems for over 18 years; covering nearly all industry sectors
https://msevents.microsoft.com/CUI/EventDetail.aspx?EventID=1032490784&culture=en-US

Database attach upgrade videos on-demand
These two videos demonstrate how to use a database attach upgrade method with read-only databases to upgrade from SharePoint Server 2007 to SharePoint Server 2010.
http://technet.microsoft.com/en-us/library/hh315922.aspx

Info on SharePoint Service Pack 1 and Hotfixes

Description of the SharePoint Designer 2010 hotfix package
http://support.microsoft.com/kb/2536592

Technical details about the SharePoint 2010 and Office Server 2010 SP1 releases
http://support.microsoft.com/kb/2532120

List of all SharePoint 2010 and Office Server 2010 SP1 packages
http://support.microsoft.com/kb/2510766