Because I started out as a poet and writer, one measure I've always prized is what reviewers have said about me in print (which includes text online). And I've paid a pretty penny to help garner their opinions, by hiring excellent publicists to reach out to them and serve as neutral though trusted advocates, though I've also contacted a number of reviewers and publications myself.
As part of looking back on my life in the music-business trenches, the other night I went through the press page on my website and looked at all the reviews of my five CDs released since 1999, adding many of the publications' logos to the site. It was fun and made their reviews seem more real to me again, with a welcome distance from the tortured immediate post-release phase when I was hoping someone would get and like the record.
Check it out if you'd like: http://lisabmusic.com/press_quotes.html.