If you want to send files larger than most Email Servers allow (Photos, Documents,whatever...), Up to 2GB, you can use one of these Services (As long as you don't mind looking at advertisements), It works like this you upload your file(s) to their server, they store it, and then send a link to the intended recipiant(s), where they can down load it at from a "High Speed" Server, the whole Upload, Download procedure is Web Based, so there isn't any software to install.
You Send It: Files up to 1Gig
Send Over: Files up to 2Gig
Mail Big File: File up to 1Gig
DropSend: Files up to 1Gig
Always make sure you read the Privacy Policies, and Terms Of Service, before using any service.
JP