matthewr
spɹɐʍʞɔɐq spɹoɔǝɹ ɹnoʎ sʎɐld
you could place your "extra" storage on a web server (cloud is just a silly marketing term for that)
The cloud is not really a web server and they all offer a huge range of services within the ever expanding definitions of IaaS, PaaS, SaaS, etc. as well as all sorts of of protocols in addition to http. You can of course run a web server in the cloud but that's somewhat different.