Aldibaran (German) is a private site about Aldi, the supermarket chain(s) (Aldi Nord and Aldi Süd). It contains the FAQ of the UseNet group de.alt.fan.aldi, including a list of the producers. The list of branches indicates which Aldis you go round clockwise (rechtsdrehend) and which anti-clockwise (linksdrehend).
Aldiblog (German) seems to have given up the ghost.
Aldi’s own site is available in other languages than German.