“That’s … uh … interesting.”
A friend of mine send me the link to Bounce (information text here), a website that allows you to easily give comments about other websites. Bounce grabs a photo of the website (you can also upload images directly) and lets you draw areas, which you can annotate with comments. It reminds me a little of flickr’s way to allow specific comments to photos and it is very nicely done. You can easily share you comments with others.
If you look for an easy way to get feedback about your website, Bounce may be interesting for you. BTW, they also give good rules for giving and asking for feedback — see also the chapter about feedback in the book here.