How can you know when a bill changes status (e.g. passes third reading)?

If you log in to your OntarioMonitor account you'll see on the top menu a button that says "Bills/Proclamations". Click that button.

You'll now see a screen that shows you the current bills (those that have not received Royal Assent). Just check off the bills you want to monitor and then click the "Save Changes" button. The screenshot below shows you what this looks like.

Once you've checked the bills the system will start monitoring for those bills and send you an email within minutes of the status change. A bill alert is shown below.