I have an ecommerce site and Im working on optimising each page. Im targeting a couple of keywords per page, some are not too competitive. Would it be a good strategy to add my pages using these keywords to social bookmarking sites or would this not offer much help. Im thinking that I might only need a couple of backlinks for each keyword to build it up.

Hi,

Generally social bookmarking help you to get some traffics not for backlinks. So bookmark you site with your keywords because if some one will search for you keywords then you site can come in list.

Thanks :)

use social bookmarking to increase traffic of your website and bookmark your website relevant keywords to submit it in the list

Try to select always related tags for your bookmark because your tags will help you to get some traffics. If some one will search for your tags then in SERPs your bookmark can come on top.

Thanks

thanks for giving me social bookmarking advice that it not give backlinks it only get traffic on your site . and your keywords playing a very important role for this

PVC Copper Wire

Subscribing to social bookmarking and networking sites can indeed bring a lot of traffic.
Here are a few things you have to keep an eye on:

Pay attention to your Headlines
Write a meaningful & short description
Make it easy for others to vote / bookmark your site
Submit to the right category
Cooperate with other social bookmarkers
Never submit old news
Check your spelling
Respond to comments on your stories

If the keywords which are taking are not much competitive then you should get benefits and it will be useful to use SB.

If they are highly targetted then you should use other strategies as well..