Dear All
Find below a direct link to get access to the SAP Hybris C4C Wiki. It seems to be the most complete source.
https://wiki.hybris.com/display/c4c/SAP+Cloud+for+Customer
Important TIP : Within the Wiki, you will find the "Welcome Pack". It will help you navigate your way around Products & Services and is full of very useful information and tips.
Hope this helps you.
Best regards
Rémi LAURENT