Block Builder is a concrete5 addon that lets you easily create your own custom blocks (with one optional set of repeatable entries).
Create great and functional forms with Formidable. You can create forms and the mails that are submitted. So no more hardcoded templates, only easy WYSIWYG mail creation. All submissions will be logged and saved in C5 Dashboard.
Simple accordion with a permalinks.
Keep track of all the sites and packages on your development system.