If you do nothing else today for your online business, get yourself an autoresponder and build a permission-based email marketing list! It's the single most important "To Do" that you must do to build a super-profitable website.
I've come across possibly the best list building course ever made, and guess what? I got the rights to publish it!
It's called the List Profit System and it features six simple steps you must take to build a profitable email list.
I'll let you read all about it at my new site, Membership-Mafia.com. In short, you've got to "sell" your list, give readers a reason to subscribe by offering them something valuable, capture their attention, get subscribers to take action, and, perhaps most importantly, ensure that they read your messages.
More over at Membership Mafia.