Ask HN: What do you use to extract user feedback?

It depends on what you're trying to get out of it IMO.

If you're looking for early-stage active feedback on your site I would have to suggest my own app, http://www.launchly.com.

If you're looking for more passive/general/long-term feedback, idea, or problem reporting, then I would say the top contenders in that arena are getsatisfaction (which I use on launchly), uservoice, and kampyle.

http://featurelist.org/ has a feedback widget to pop on your site which emails you feedback (and saves it on their site too so you can check it all in one go).

Recommended.

Thanks all. To clarify, am looking for a feedback widget I can include in specific content like survey's etc.

just have a send us feedback link displayed prominently on the website.