The order of CustomLinks is loosely based on SFX sort_services.config ranking. Here is the basic order, with space for tweaking. * 10 = Paid publisher subscriptions * 20 = Publisher hosts (there weren’t any) * 30 = Newspapers * 40 = Databases * 45 = Media, image, and streaming * 50 = Less reliable aggregators and digitized historical publications * 60 = eBooks * 70 = Open access * 80 = Reviews