Google picasa has a free web gallery feature. All you need is a google mail account and then you those login details to access images you post.
Download google picasa from here:
http://picasa.google.co.uk/#utm_cam...emea-uk-google&utm_medium=ha&utm_term=picassa
Install that, and once you have a google account, select an album on the picasa interface and click "web Album" button at the bottom.
Its only a trial at the moment, but those from motors will know that it works quite well indeed.
You get 250MB of space to start with, but i would imagin that when the code is approved and its testing phase ends, that amount will increase a lot.
Woodsy