I've added to the description that the links point to PDFs if available to keep the list updated as dead-tree format goes in and out of print.
All products available for sale have been included. The older editions are still available, so they're still there. The list is light description-wise to make it an easier job to maintain.
Wyrms Footnotes 15 was published by Chaosium, so I considered it more "official" than the other fanzines. Sharper Adventures and Forgotten Secrets have been removed from the Heroquest Glorantha section as suggested. I haven't paid that much attention to what is uptodate cannon or not - I guess that would only be the guide, atlas, sourcebook and latest runequest and heroquest books. The electronic version of King of Sartar is an ePub book and not a PDF for some reason, I guess that is the reason I've linked to the physical copy. Waiting for the PDF! Book of Heortling Mythology is now correctly labeled!
All the broken links went to dead tree versions. There was a reason for the shift to PDFs!
Thank you for your input lordabdul!