Directories are not an effective method to build quality incoming links but they will build volume and are a good way to get the ball rolling. Most will have a low Page Rank and pass very little link juice on, but when added all together, it could be enough to get you up to PR1. Rather than try to submit to each one manually it is quicker and just as effective to use a bulk submission service. A quick search for “directory submission” will bring you back a list of potential suppliers. If you know of directories that deal specifically with your niche, make sure you manually submit your site to these as well to build relevant incoming links.
Make it easy for your visitors to retweet your website/ articles with a retweet button. Also set up your own account to push news items, blog articles, and special offers to engage with your site’s users on a one to one level. Twitter exclusive offers or resources are a good way to build your follower base quickly.