There is a lot of experimental adsorption data available in the published literature, but it is hard to mine. There have been important efforts to digitize data from experimental adsorption measurements, in particular adsorption isotherms, like in the ISODB/NIST online database. In that case, all data have been digitized manually over the last decade but the database can be fed by users via data standardization. Isotherm data can be freely and easily visualized on the database website, or through an API which facilitates a more systematic access. However, despite this effort there are still a number of difficulties to overcome, such as uncertainties in the digitization process, lack of systematic metadata, and the identification of materials and samples. Previous studies about reproducibility in the field of equilibrium adsorption indicated that single-component adsorption uptakes have been fully validated through consensus only for a few well-studied materials. In most cases, different research groups use different experimental protocols, such that synthesized materials published under the same name and/or composition often behave differently in terms of adsorption characterization. Efforts are needed to publish the metadata associated with preparation conditions, handling, and activation -as well as standardization in the way it is published, for example by using the recently proposed AIF format, 54 a project supported by the International Union of Pure and Applied Chemistry (IUPAC).