You are right, social bookmarking is an alternative way to generate traffic and works for our site.

There are many different ways in getting traffic, from PPC campaigns to forum signature.
Social networking is good at the moment, but referers from previous clients also gives good quality traffic.

One thing I learned is that you can drive traffic to your sites, but I have had more people see my site by me driving it to other sites and becoming a part of their reality, blogs, forums, youtubes, articles @ google, etc. that we post and sharing the new found URLies.

Which really is the same thing as social media.

The core of new generation of web 2.0 is social networking. We can use all of this resources to invite traffic. I use social bookmarking, squidoo, hubpages, etc regularly to promote my site.

There is a lot of social site that can help gain traffic for the site. Social bookmarking, social news , social media through communities and the social shopping
like stylehive on which you can bookmark the images of your products. You can also try the photo site such as flickr and prove that it gave traffic.

Dear Ariswin.

I know your frustration.
Been there done that.

Have you considered this?

Each of the marketing methods have strong
supporters because each have effective aspects.
A well presented web site will use a cross
section of these. Your duty is to examine,
select, implement then present your product in
a manner suited to serve your customers

If you need further help, contact me, or
post your questions here on the forum.

Best regards,
Frank Carlson

well, in the long run if your site gets more popular seo(google) would provide the most traffic but there are other alternatives too to get traffic:

1. submit your content to social bookmarking(digg,delicious..)sites, this helps generate a bit, also if your content is interesting and makes it to the 'popular' list you'll generate a lot of traffic.

2.have an rss feed for your site, people would subscribe to it, these generates good readership and loyal readers to your site.

3.comment on other people's sites

4.advertise(not recommended)

using the first 3 tips you can generate a bit more traffic but SEO is the ideal method to generate traffic