Many life science databases, but undoubtedly many other databases too, cite literature related to knowledge in that database. Each entry in that database that cites a particular article can be seen as a "tweet" about that article. I cannot stress how important this link would be: readers get an immediate idea which databases have adopted knowledge from this database.
In the life sciences many databases now have SPARQL end points that make up looking such information not too hard. The community can help design appropriate SPARQL queries.
Thanks for the feature request and sending over the additional information.
We'll be sure to read through your information and see how best we can implement this.