Thankfully, most of the file transfer pitfalls are easily identifiable. Below are the first three you need to deal with right away to avoid noncompliance penalties;
imgur is a simple and quick image share service which allows you to upload a picture, manipulate it (optional), and share it with your friends, post it to social bookmarking sites like reddit, add it to your blog, email it, etc.
Gazup! uploads your files to multiple file hosts in just one go, means keeping a copy of one file in multiple hosts thus saving your time and bandwidth. Right now it uploads the files to 8 top file sharing sites such as RapidShare.com, MegaUpload.com, NetLoad.in, zShare.net, FileFactory.com, Uploaded.to, HideMyAss.com, Badongo.com