"We believe digital delivery is a huge market, as big as the FedEx market," said Kumaran. "Our secret sauce is ease of use. One, two, three, you upload the file, we auto-alert the recipient, and you receive notice it was picked up." If you have a YouSendIt account, you probably got it after someone sent you a file that way. That's what triggered me to get mine.

An information site called offers help deciding which hosted FTP service best fits your needs. You can take their two minute quiz to let them guide you to a good service for your situation.

Another popular service with a useful free offering is . This service acts more as a shared storage space where team members can access the same group of files from anywhere on the Internet. Box.net, growing beyond just shared online storage, now offers online workspaces, file comments, searching across files, better security controls and many other new features.

Jen Grant, vice president of marketing for Box.net, said, "Over 50,000 businesses are using Box.net today. Most are using our paid services as a mainstream alternative to Microsoft's SharePoint."

Box.net has worked with the applications providing online storage for online file creation for quite a while, and has opened up its programming interfaces to third party developers. The game plan is to stay away from the online backup space and focus on workgroups and collaboration. Put your big files in a public folder, tell your coworkers, and let them download the files without trying to sneak a big file past your e-mail server.