I've been using Dropbox to host the sermon files I'm putting online. I'm starting to run out of space, but they increase your disk space if you can get others to sign up under you as a referral.
This is a great site for storing files online that you can then access from another computer, and you can use it to share your files with certain people but not make public, or you can generate public links, as I'm doing with the sermon files, if you prefer that. If you sign up as a referral, you immediately get your first bonus as if you had referred someone, so it's better to sign up as a referral than otherwise.
So if you would find such a site useful, please sign up and install the software, and it will increase my disk space and allow me to store more sermons there. (Or you could even do it just to help me out, if you're so inclined!) The link above should give the referral to me.