I think he meant sites that have earned authoritative positions but in the same niche as yours. .gov & .edu are good but how good are DMOZ and Yahoo now? You may want to check these threads http://forums.digitalpoint.com/showthread.php?p=9420937#post9420937 and http://forums.digitalpoint.com/showthread.php?p=9003637#post9003637 Alevoor
well in order to get authority links your website or blog should be content rich else its very difficult. Secondly you should do some research on google to backlinks from authority sites. This will give you some tremendous results.