Hi Jan,
Digital Scrapbooking is the same as normal scrapbooking except it's all done in a graphics programme on your computer. You can buy just about everything the same as you can get for traditional scrapbooking including backing papers, photo mounts, ribbons, bows, embellishments etc ............ plus a few that are only available for digital scrapbookers like clipping masks etc. Of course you still use your own photos.
A digital layout can look just as good (if not better) than the 'real' thing ........ and you can then wither print it out (you'll need an A3 printer to print out at 12 x 12) or share your digital creations online.
I did some ages ago and you can see them here