Editable list/database.

Would like to create a HTML widget, that pulls data from a used editable array editable inside the yodeck GUI. So they can write a paragraph or five about recent news, birthdays of colleagues, without messing with my layouts, and acidentally screwing up positioning, or moving layers up and down. Sort of like an RSS news widget, but where the entries it pulls data from are stored in the UI, and users can add/edit them without touching the layout, and making text boxes. To be able to efficiently do this today requires pulling data from a file on external web server as far as I understand?