I know many of you have had great success marketing online.
I feel they both rank about the same for organic traffic.
HelpTabs Or TabIt
Here is the goal of the site:
The site is a "Social Search Engine"
Users will create & share tabs to their favorite sites, videos, photos, blogs and more...
Helptabs reminds me of a do it yourself site
TabIt reminds me of a social site like Digg or Pinterest