Posted by Nick Gerner Last week we updated the Linkscape index , and we've been doing it again this week. As I've pointed out in the past, up-to-date data is critical . So we're pushing everyone around here just about as hard as we can to provide that to you. This time we've got updated information on over 43 billion urls, 275 million sub-domains, 77 million root domains, and 445 billion links. For those keeping track, the next update should be around April 15.