You can submit article and link exchange with your related sites.

One more important thing I would like to tell. Commenting on various sites & blogs is very essential for increasing backlinks to your site.

It is very important that you should not spam on the sites you comment and the comments you put should be some how related to your site and must be unique. Viewers and search engines are really not interested in the comments like “Hi, very nice website… the article is good and informative”.

Its always better to make your opinions, views, or suggestions in comments. The more keywords you add in your comments the Google sooner or later will tag them with your content.

Hi

There are lot of methods to increase back link of your sites

1. Link Building Process( one- way / Two-way)
2. Directory Submission
3. Article Submission
4. Press Release Submission
5. Blog and Forum Posting

if you apply these all in right direction then defenetily your site back links will be increased

thanks

Do all small things in off-page optimization like directory submission, social bookmarking, networking, article submission, blog creation, posting and commenting, forum posting and also do little bit reciprocal linking.

All the other methods are necessary for increasing backlinks and traffic, but as chrisstyris had mention that do a little bit reciprocal but only with the relevant and high PR sites.

i am agree with you. Social bookmark is good technique to increase traffic in website.

Hat tip to Sampath1 for summing it up nicely.

You may want to focus on forums (like this one) and blogs that provide dofollow backlinks.

If you want to find the dofollow blogs and forums, then you need to check the source code of that site and just find rel="nofollow". If you find it in the code then its not a dofollow site.

my opinion says all are basic steps social bookmarking , form posting, article submission, directory submission are good to increase traffic in site. but quality content is most important factor in all steps.

Yes, there should be some quality and uniqueness in the content, but also the submissions you are doing should be on quality sites. The more quality sites you select the more quality links you will get.

Link bait for organic links

That is a simple and good technique that attracts visitors webmasters in no time. The perfect description of this term is described on the Jim Westergren's website, also some quality tips about improving website you will find on his website.

One way links are the most important and valuable for a website and just a few quality one way links for site may boost ranking. Some different ways for getting one way links are:
Submit your site to major directories, such as Yahoo! and DMOZ.org, in the appropriate category.
Submit articles to article directories.
Publish articles on your site and invite other sites to publish them on their sites, with a link to you.
Participate in forums which allow a text link to your site in a signature.
Get listed in business directories.

Magic would not work here. you have to do work alot. commenting on blog is an easy and free of cost way to increase backlinks.

Participate also on the following:

press release
hub page
squidoo
link wheel
blog commenting