I'd just like to comment on finding webspace.
It's very difficult to find a good place to upload everything in one place - that is, text files and images, where the url doesn't change. Dropbox is good for individual files, but you can't create an easy-access 'public' folder without paying for it nowadays, making it impossible to use the CardGeneralURLs function.
Therefore, the most luck I've had is to split it up - use dropbox for all of the textfiles, but use an image hosting site (photobucket is good, imageshack might be decent as well) for all of the card images since you can arrange it by folder and not have to worry about scrambled urls.