At GNPS, since there is so much power given to the user to affect the system, it is necessary for users to keep track of their own state. Specifically, in the user summary page, users can view the datasets that they have uploaded, either public or private, browse the datasets they have subscribed to, spectra they have contributed to the GNPS spectral libraries, and the spectra that have been contributed to GNPS challenge spectra.
Users are able to see all their own datasets, either public or private in a view like this:
From here users can view their private datasets and make them public if they wish or simply browse their own datasets. Additionally, users can share their datasets with the world via twitter and facebook.
Users can browse all the datasets that they have subscribed to, as well as share them with the world.
Users are able to keep tabs on all the public library spectra they have uploaded to GNPS.
Users are able to keep tabs on all the public challenge spectra they have uploaded to GNPS.