Many of my customers come unstuck when they try to send photographs by email.
They will often be using a large mega-pixel camera and the pictures come out h-u-g-e, often too big to be sent.
Many here will already be familiar with resizing the pictures into screen-friendly sizes but even so there is a great little website with a resizing tool built in.
I thought it may be a useful bookmark / favourite for all you photographers, or handy to send to those relatives who aren't as confident at using their computer.