I've been a member of Triple Your List for quite some time now and it is the best downline building site I have found so far. The way it works is you sign up and your email address gets added to the list. Then at least once a week you get 3 email addresses of people who have joined the site. The email addresses you can use to build your own list. As they say, the money is in the list.
Here's a write up promo from the site:
Are you willing to spend 3 minutes of your time
to sign-up for a system that is going to provide
you with opt-in email leads for FREE?!?
If not, just stop reading now, because I don't
want to waste your time or mine.
I only want to contact serious internet marketers
about this amazingly simple new system.
Triple Your List is not a mailing system or a
safelist. These leads will actually be emailed
to you as they come through the system.
Simply put, each member will cycle through the line.
When you are at the top, you will be emailed the
next three opt-in leads that come in through the system.
Once you have your leads, you will have the opportunity
to cycle back through to collect another three leads.
The concept is so simple, yet so valuable to an
internet marketer like yourself.
This is your chance to actually get your hands on
solid email leads. These will be leads that you can use
again and again without having to spend a dime!
That's right, this is a 100% free program.
Grab your spot in line now, so you can cycle through
again and again. The quicker you get in now, the quicker
you will cycle!
Remember, every cycle gets you 3 opt-in email leads, and
you could potentially cycle hundreds of times a week!
Make Money on the Internet