AutoResponder:

Response Magic A basic element of any business is to build a list. In order to manage your list you need an AutoResponder to store the contact information and to distribute content. This is one of the best I have found. If you join PIF4P, it is part of the recommended toolset.  

Lead Providers:

OppSeeker.com Leads..free to join.  Anticipated expenses  $30--$120 per month initially, but with their affilaite program you receive a commission on each of your downline members purchases so eventually this is free.  
 
Rent-a-List Mail to their list. Anticipated expenses  $30--$120   (once your downline starts purchasing, your costs go down because you receive a comission on each of their purchases.  

Content Providers:

Info-Go-Round Anticipated expense: $30. As you build your list it is important to provide valuable information to your subscribers. Info-Go-Round has plenty of that. Sure, you can write your own. I often often, but sometimes you need something and you just don't have time or the creative energy. This is one of the best investments you can make for you business.

Information Sites

Support Blogs:

Its No Hobby This is my blog where I publish info about establishing and operating a business.