The group on facebook is a little shaky (i.e. very few postings, no member interaction, no photos or discussions of any sort). Perhaps this is because there is already a place to discuss all things ‘skine.art… which is here!!
However, I do think putting occasional updates from the site onto the facebook group would be a good thing. Possibly things like what mediums people find useful in moleskines (the plain notebooks tend to suffer bleed-through with permanent markers, etc), what size people prefer, excerpts from the upload feed (maybe chosen by the most favorites?), or even just links back to ‘skine.art so the fb group visitors can come see the whole site.