Here are a couple ideas:
- Folders, like in the Reports UI
- A description text field - maybe it would show up in mouse-over.
- Indicator for how the list is used. If it's used in a Survey, shows a link to the survey. Likewise, if used in an Outreach, show the name or link to it. In the Outreach panel, there is a handy link to the associated Power List. Make it reciprocal.
- Indicator for date the list was last used in a survey or outreach.
- Is the List built from an uploaded CSV? If so, indicate it in the list view, maybe with an icon. Now, the only way to know is to open it for editing.