Yemi glad you ask.
Thre are 2 ways about it but let me give you the latest.
Jodi Hans and justin Blake has just since December 2003? created a new type of list builder that serve a
dual prupose.
1.Build a list 48 hours - no kidding stuff.
2.Build and grow your income with forced Matrix
and to boot they provide a weekly conference session
where participants can consult and receive the latest
technique in marketing and list building.
Their emphasis is to maximise the income from a small list - which is slightly different from your original question.
But hey, why have a big list while a group of motivated
members will do the trick?
So you may want to take a look at this.
Get the free report for a start.
http://mikeang.net/memfr
Do pop into my forum and talk with me
www.mikenag.net/forum1