Since January 2014, there are free SAP Learning Hub courses available, as explained in this blog posts:
In order to access SAP Learning Hub, you need a Learning Hub account. In case you don’t have one, you can get one limited account for free (Discovery Account) on this address:
(you can find more information about SAP Learning Hub and all the free and non-free accounts in the link below:)
Once you have the account, log on into the Learning Hub page. When you list all the courses available, you will see those that are free; they are the same as those posted in the first link.
The courses may not appear until some days after.