No problem. So remember you can add a page and have us notify you when the entire thing has changed. Or you can add a page, click "Show monitored area," click and drag over area you want to monitor, and you'll only be notified when that area changes. So:

1. You'll get an email letting you know that there has been a change with the image in the email.

2. You can sign in and you'll see a where these (0)'s are? Those will have the number of changes that have happened that you haven't seen yet. http://i.imgur.com/fmuqi8B.png

3. You click on that and you'll see the update (only shows scans when something has changed): http://i.imgur.com/t3lxmVN.png

4. You can compare that with the previous scan to see what changed if you haven't specified an area: http://i.imgur.com/VbP3dcu.png

We're adding several things to the next release though including more markup around what has changed, HTML diff, and an API.