exist a announcement addon like:
Name:
Location:
Email:
Phone:
Subject: i sell
Announcement:
if is not consider it like a suggestion . thx

What should it be used for? Do you have an example? Url/screenshot

I think he means like craigslist application

ok

Sorry what's a craigslist application?
I believe he means classifieds(buy and sell).

craigslist.org