Reliability of U2gigs com I know that there s been discussion of the reliability of U2gigs com but I just came across 2 print sources where the site is referenced The first is the 2009 book U2 A Musical Biography I don t have a copy of the book but a search at Google Books shows that the site is mentioned in the book The second is at the very bottom of the page in a 2007 issue of Billboard in a brief article about the songs played on the Vertigo Tour link It s cited as u2 vertigo tour com which as your probably know is the old url of U2gigs com and typing it in will redirect you to the new site I actually just referenced this article from Billboard for the Streets article but it seems pretty redundant since I might have well have cited the website directly Elevation tour com is cited in the book U2 Live A Concert Documentary and according to U2gigs FAQ Elevation tour com uses their database Let me know your thoughts