Netlify has introduced collaborative Deploy Previews, allowing developers to share preview URLs with reviewers who can leave detailed feedback directly from their browser. Reviewers can use tools like marked up screenshots and recorded videos to provide visual feedback, which syncs into GitHub and other development productivity tools. To get started, reviewers need a Netlify account or sign up for a free Reviewer seat. The review process involves finding the Netlify drawer in the bottom-left corner of the browser window, signing in, and submitting comments with notes, tags, and images. Best practices include keeping each comment concise, being direct and specific, including steps to reproduce functional bugs, and making it clear whether feedback is blocking or non-blocking.