Thanks for your patience during this process.
With the closing of the last bastion of Dreamcast files for Dreamcast browsers, dreamcast.planetweb.com, I have decided to use Dream On to fill in that gap. I have redesigned the site slightly to make it Dreamcast browser friendly. I will be adding VMU files to the site over the next few weeks. After that, I will add a script to the site to let you contribute your own files and saves.