A lot of places don't allow cross linking of files. They don't want to be repositories of MP3 files or porn mirror sites. Make sure you read the Terms of Service fully before you sign up with someone. I contacted customer service at my new hosting company to make sure that there wouldn't be any problems with my posting stuff to the Free Stuff area as that is technically cross-linking. (Files stored in one site, but accessed/downloaded from another site.) I wouldn't be surprised if Xoom has revamped their policies on cross-linking. They've been doing interesting things the last few months with people's sites. GeoCities has terminated a lot of accounts as well.