I have began taking pictures of local businesses and offering them a variety of digital images based on size so I thought it rather important to explain how and why the size of a digital image matters depending upon what you’d like to do with it.
That being said, I am not a web designer and don’t have the vocabulary required to break it down like they do. So if you are interested in how the size of an digital image can affect the overall quality and outcome, I would recommend starting here and reading what she has to say on the matter because she is easy to follow and understand.
If you are tech savvy and require even more information this guy was also easy to follow and understand. 🙂