Most webmasters understand the importance of gathering and paying attention to visitor feedback. You could use praises and complaints to improve your site and provide more value to your audience. People could always write to you using your “Contact Us” page. Usersnap is a neat plugin that gives your visitors the ability to share visual feedback with you.
Usersnap may not be a free service but could prove very useful for your business. Your visitors will be able to send you visual feedback with notes, highlights, and markings. You are going to need an API key to get started. The buttons position and other options can be changed from the back-end. The developers do have a free trial plan just in case you want to see how effective it is for your business.
Usersnap is a useful service for those of you who want to actively seek the feedback of your visitors. It is not the cheapest tool around but gives your visitors more options when submitting their information.