My Steelman for Elsevier: they coordinate the peer review (giving your work more legitimacy), the marketing, and the distribution of your work. We all take Drop

My Steelman for Elsevier: they coordinate the peer review (giving your work more legitimacy), the marketing, and the distribution of your work. We all take Dropbox/Google Drive/iCloud for granted but actually keeping a searchable and relevant archive of your work on place forever is also a fairly involved process.