Flashmirrors is a free web service that will allows you to upload into different files hosting sites simultaneously in other words you can simply upload files into flashmirrors website it will automatically upload files into top file hosting services. The files hosting service includes rapidshare, hotfile, depositfiles, fileshare etc.
To upload files simply go to flashmirrors website and upload files it will automatically upload into top files hosting services and it provide download link of uploaded files. Each file hosting services limited files by its size. No sign up is required for using it.