I just came accross this website that some of you might be interested in. I know it can be confusing trying to work out file sizes of your artwork photos if you are wanting to post online for a critque. I came accross this website which will resize your images / photos for you so you can post them on the forums and online galleries etc.
The advantage about doing that is not only does it mean that people viewing your photos won’t have to wait so long for your image to download,Â it also means you don’t use up all your internet usage, BUT it also protects your image copyright wise, a “web” version of your image wont print very well so you dont have to worry that people can take your image and print it out / sell it 🙂
Worth a look here: http://www.shrinkpictures.com/
They have a great video tutorial 🙂