I have been using the Little Snapper screen capture app for well over a year now to capture screenshots of our Joomla Templates but for some reason I have never really looked into the options it provides for sharing images.
It's probably easily explained by the fact that I (like I assume most people do) form habits in their workflow that hard to break. My usual workflow for working with Little Snapper is to take all of the screen shots of the template once the local version has been finalised, and then export the images to fireworks where I crop and resize them.
This really doesn't do any of the deeper features of Little Snapper any justice. For instance the app can:
- Tag and organise images
- Annotate images
- Blur, crop, resize, highlight and create text callouts
- As well as publish to Flickr, Ember or send the screen shots via ftp to your server
So anyway I opened an account on Ember a few months ago and promptly forgot about it, however this morning I have resolved to snap and publish works in progress and also publish screenshots of the Joomlabamboo back catalogue.

Like all social things you can follow the activity there - it may provide a useful resource for you when deciding which template to use on your next project.