WP-Aletheia: Feedback is a useful free plugin that allows you to gather feedback from your visitors.
The feedback form can be showed to specific user roles. This is useful if you only need feedback from certain groups (e.g. authors). The form can be placed at the top left, top right, bottom left or bottom right of your page. If your admin bar is visible to visitor you can also place it there.
You can remotely post all of your feedback to one WordPress installation. To do this every WordPress website has to have the plugin installed. This is useful if you are looking for feedback from a specific user group across several websites. For example, website design companies could show this feedback form only to the administrators of websites they created.
You can add a logo to your form too. In the settings area it states that the maximum size allowed for a logo is 250×45 pixels however I used the WP Mods logo, which is 250×76 pixels, and it worked fine.
The form is discretely hidden on your page and drops down when the visitor selects it. After the visitor has submitted their feedback the form quickly hides itself from the main area. Once feedback has been submitted, you can organise the message into an appropriate category.
There are two fields in the feedback form: title and content. Strangely, when you look at the feedback information of an entry there is an addition field called Site though this is absent from the form itself.
It’s not the most advanced feedback form available but WP-Aletheia is a simple way of adding a feedback to your website for certain user groups. Worth checking out if you are looking for a feedback form that integrates into your design discretely.
Link: WP-Aletheia Feedback