(1) Write about groups/companies. He thinks that F'd company and adbright got popular for similar reasons. Writing about a group (a company, for example) creates a buzz so that all the people in that group or company go to your site and become subscribers.
(2) Instead of "contact us" links, have a "contact [name]"
(3) Make your site something people "need" to come back to. Give people a compelling reason to come back. (Blogs can be dead ends, which is the opposite of this idea.) For example, for F'd Company, he created a game for people to compete, which caused people to come back in order to win the game.