Can I get notified when someone fills out a form?

Yes. It is possible to receive an email with the filled information when someone submits your form. This can be achieved by setting an email notifier for your JotForm. Please refer to the guide below that can help you with setting up a new email notifier.

http://www.jotform.com/help/25-Setting-Up-Email-Notifications 

If you want to send an email to the form filling person, it can be done by setting up an autoresponder.

http://www.jotform.com/help/26-Creating-a-Form-Autoresponder

Hope this information helps!