What are some alternatives?
MultiUp - Your files will be uploaded on many filehosting websites. MultiUp.org is a file mirror website.
GO4UP - Multiupload service : upload your files on 12 file hosting services simultaneously !
MirrorAce - MirrorAce is a Mirrorcreator and it helps you create multiple mirrors for your files. Upload and store files simultaneously to free hosting providers. Files will be automatically mirrored to many free hosting providers.
MirrorCreator - Upload one file of 400 megs or less to multiple free file hosts -- 14 at most. 25 possible hosts.
MirrorCop - Upload files to multiple hosts helps you create multiple mirrors for your files.
uploadmirrors - Uploadmirrors uploads your file to 27 different free file hosts.