As Office 365 is gaining popularity and more and more small businesses are migrating to it I have come accross some decent free training.

Micrsoft has some Office 365 training at the link below

https://techcommunity.microsoft.com/t5/Office-365-Blog/Just-released-Free-Office-365-training-for-IT-pros-small/ba-p/109527

It is separated into sections for IT Pros, Small Businesses and End Users.

Have a look.