Some resources on Office 365
Service Descriptions
https://www.microsoft.com/download/en/details.aspx?id=13602
Deployment Guide and Deployment Readiness Tool
https://community.office365.com/en-us/f/183/p/1541/5095.aspx
Service Updates Wiki
https://community.office365.com/en-us/w/office_365_service_updates/default.aspx
Office 365 Technical Blogs
https://community.office365.com/en-us/b/office_365_technical_blog/default.aspx
Office 365 SSO Content Map
https://community.office365.com/en-us/w/sso/default.aspx
Exchange Online Performance Guide
https://community.office365.com/en-us/f/183/t/45466.aspx
Quickstart Online for Partners
https://quickstartonlineservices.com
Forum Assistant
https://www.microsoft.com/download/en/details.aspx?id=27547
Exchange PST Catpure
https://www.microsoft.com/download/en/details.aspx?displaylang=en&id=28767
Office 365 Desktop Readiness
https://www.microsoft.com/online/office365-desktop-readiness-tool-form.aspx
Exchange Remote Connectivity Analyzer
https://www.testexchangeconnectivity.com/
Who Can Federate with Lync Online Tool
https://gallery.technet.microsoft.com/Who-Can-Federate-Tool-a9e00d23
Exchange Federation Discovery Tool
https://gallery.technet.microsoft.com/Exchange-Federation-fdf8a324
MessageOps Office 365 Tools
https://www.messageops.com/software
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