You may have seen my response to an Information is Beautiful post. Here’s the viz I used in that post:

This uses sheet tabs to create an “About this viz” tab. It is good practise to credit data sources and date your vizualisation. The About Box allows you to do this. I’ve used parameters to store the hyperlinks, and dropped them onto worksheets embedded into the “About this viz” dashboard.

Prior to v6, the choice was either to omit the credits, or squeeze them into your dashboard somehwere. No more!