Let's create a list of vegan databases. Free/open stuff first.
- Veganwiki.info is a semantic wiki under the CC-BY-SA license
- http://www.veganwiki.co.uk/index.php?title=Special:AllPages wiki with a list of vegan products in the UK
https://blog.veganaut.net/2015/10/auf-den-schultern-von-riesen-neben-anderen-zwergen/ An overview blog post in German - it does not seem to be factually correct though, e.g. Happycow