Below are a few of my Squidoo Groups which are in the top 100 at Squidoo. (Some in the top 5)
You can join free and link to your sites whether you are a Squidoo member or not.

The Me2Everyone Group
I just became a shareholder in me2everyone and I never had to pay a
single penny for the shares!
It can only be described as the gold-rush for 2009.
This company is going to be huge and shares will
soar in value over the coming months!
You can register for free and it never has to cost you a single penny!

The World's Greatest Business Minds Group
This is a very popular group at squidoo. Share your links and introduce yourself.

Tweeter Getters Free Twitters Followers Group
Tweeter Getter is a free tool that can build your list of followers
at twitter by thousands a month automatically.
Everyone is invited to join our group and share your twits
with us and build your list of followers by the thousands!

No Member Login Free Advertising Center
Tired of submitting your website to directories that have a kazzilion other sites
listed and zero chance of ever being found?
Want a new and revolutionary way to drive tons of
free targeted traffic to your website?

The One Million Free Visitors Group
You won't believe how easy it is to get one million free visitors.
Join our group and get started driving tons of free visitors to your sites!
I'll not only show you how to get one million free visitors
I'll also share all of my other traffic generating resources.
Everyone is welcome!

Get Paid To Play Lotto Group!
This is one of the coolest business opportunities on the internet.
You can actually play the Lotto free and get paid to do it even if you never win.
I also have tons of other groups and networks here at ning
and numerous other social networks.

Contact me if you would like a complete list of my groups where you can join,
share your links and introduce yourself to my other friends Free.

Best wishes,
Zac