“With the change in Tumblr policy that is affecting not only NSFW creators but SFW creators due to Tumblr’s horribly buggy flagging system many creators are leaving the site and are setting up shop elsewhere. Whether that be deviantart, Twitter, Furaffinity, or wherever the exodus has already begun.
“The problem is it can be hard to locate where your favorite artists may have relocated to. This puts artists in a precarious situation as a lot of them used Tumblr as their homebase where they have the greatest number of their fans.
“To hopefully make the evacuation in the coming days a bit easier I have started a prototype Google Sheet that will contain information on where you can find artist’s galleries now that they have fled tumblr.
“We can’t do this without the help of artists out there as well as their fans as Seth and myself can’t find every single artist that has moved to another web platform.”
More details at the source on Equestria Daily