During the last two months we've been receiving a lot of feedback items and we wanted to share the great feedback tool we've been using.

See the "Feedback" button on the bottom? It is supplied by
Kampyle, and you can get it for your own blog or site as well.
It can be used it to give any kind of feedback, starting with general feeling about the site or page, through content problems, to specific bug reports. Behind the scenes it has a very user friendly dashboard that displays various analytics about the feedback items, by grades, by categories, by pages, chronologically, etc.
Moreover, it has an internal inbox, very smartly (and automatically) arranged by categories, enabling grouping of feedback of the same issues. It also allows responding to users who have supplied their email address, as well as set and track the status of the reported issues.
In short – if you care about what your users think and would like to improve your site, this tool is a must!