I built my game by clicking File → Build settings → Web Player → Build
I, then, copied the folder that I built my game in to my Dropbox folder (i.e. I uploaded both my HTML and my UNITY3D files in my Dropbox folder).
In the folder I just copied over (the one that is now in my Dropbox) I right-clicked on the generated HTML file and clicked on Share Dropbox link.
I gave the link to people, but nothing happens when they copy and paste the URL in their browser and give permission for the plugin to run...
Have I missed a step somewhere?
Thanks,