You will need a Google+ account and email and then you can use the free capability to Share your archive photos and images with anyone interested in your project. Here is a quick Google Video that gives you the visual how to Guide. It is only 1 minute and 15 seconds and think of all the benefits using Google+ with Photo sharing will give you.
Ideal for Local social and family history archives and easy to use, neatly integrated, why not give it a go with your latest pictures, scans and images of your artefacts.
You can also use Google Drive now with your account for a free 5gb of document and file sharing in the cloud.