Using social information to measure user information is an effective way for bloggers to understand what their readers like. It is also possible to use the methods we’ve outlined here to measure the popularity and effectiveness of pages on a corporate web site. Another useful thing to do is to dive deeper into del.icio.us and digg tags and comments. These pages contain a wealth of insightful information about how your audience perceives your content.
Read How Social Sites Reveal What Your Audience Likes from the Read/Write Web