Did you know you can subscribe to www.scubaology.com? 
Just use Google Reader http://www.google.com/help/reader/tour.html  

Google Reader lets you add different websites to YOUR list, and then alerts you when new articles are published.  I use google reader to research a variety of topics.  There are other blog readers available, but I have always used google.  Google Reader is totally free and works in most modern browsers, without any software to install.

 Once you have google reader or any reader, all you have to do is add www.scubaology.com to your list and you will get notified whenever the site is updated.  That all there is to subscribing.