Pay people to write tutorials for you such as
http://psdtuts.com/ does. Almost all their stuff is user submitted so they always have REALLY good tutorials. If you cant afford it though maybe try to get people to submit in exchange for links and such.
I see good tutorials make it on the home page of digg.com once in a while so I would try networking on digg.com a bit.
Make sure to comment on other blogs and sites related to yours.
Read
www.problogger.com they are the bets place to learn about blogging.