The initial ‘cloud’ was about having a third party like Amazon or Rackspace run/supplement your servers, freeing up time and saving money. Today, it’s mainly about SaaS (Software As A Service). SaaS means using software over the internet rather than installing it on your computer. SaaS started to go mainstream in 2012 when software heavyweight Adobe launched Creative Cloud, making Photoshop and other staples available to use online.