This would remove junk that people put in their descriptions. I would like this as an option not a mandatory switch.

Allow to filter by subcategories. Instead of just "For Sale" you can select to search only in cell phones, cars, clothing, etc.

Can't speak for others, but after seeing this same ad in every email since Friday, I'll _never_ use Freshbooks. And I'm starting to write my own RSS parser so I can stop using AdRavage, too.

Occasional ads are fine. One with every email is unacceptable.

Indicate in notification if an image is present in an ad

The ability to set up notifications for items on eBay

The ability to set up notifications for local classified sites all across the nation

Create button to add all cities in area/state/nation quickly