How to get backlinks for b2b portal?

Hello Everyone,

I have a b2b business directory portal website, but i don't know where to start work for getting backlinks,
I need your suggestions please.

You could submit your details to b2b search engines like businees.com.
Bookmarking your web pages various well known and well ranked bookmarking sites.
Find relevant directories in your industry with good rank and submit your details and your website to that.

A backlink is any link that connects back to your site. For example, if your URL is listed in any online directory, that’s a backlink. Backlinks from other relevant sites make you more visible in search engines.

it should come from a credible site with a good Page Rank. The content or the website should be relevant to what you offer, and the anchor text provided should clearly mention what your site is about.

It would be a good for B2B companies to submit their details to B2B search engines like – business.com, Zibb.com, knowledgestorm etc. in addition to your regular search engines like Google, Yahoo and MSN

Grab the biggest auth do follow links you can such as linkedin, yelp etc

Thanks for your valuable comments.

Fine 100% do follow relevant back link.