Dreamhost is Beta testing something called: Dreamhost Apps Which means that you get to get some free stuff for your domain: WordPress / Drupal / Zen Photo / phpBB / MediaWiki / Google apps. This without having to set anything up, this will be done for...
A while back I created a little utility to upload files to MediaFire which is a file hosting service. MediaFire supports uploading of files up to 100 MB in a free account with unlimited storage, and is in my opinion one of the best free online storage...
UPDATE: this program can't be used anymore for more info check out the new blog post Mediafire is a very nice free file hosting service with unlimited storage, unlimited time availability, the posibility to work with folders and fairly advanced sharing...