Is the Free Software Directory sharing data with the F-Droid app list and vice-versa? Helping both stay up-to-date. How about WikiData entries for software under free licenses?
It strikes me there could be directory sites similar to the F-Droid one for libre Android, specializing in other OS. Or software across all OS platforms for particular use cases (multimedia, office use, etc). All of which could have 2-way data-sharing with both FSD and WD.