As per my view Backlinks are the backbone of the good ranking. When spider crawl link several times then it will improve your rakings. So it is most important to submit more and more links on related and quality websites which should have do follow attributes. So what is the fundamental technique to improve backlinks? Here I show you some of strategy to improve backlinks.

•   Forum posting with signature
•   Blog commenting with Do follow attributes
•   Article submission with unique content and targeted keywords
•   Guest posting on reputed website ( check Do follow or not)
•   Social Bookmarking on High PR websites

I do agree with your post. Only quality back links can give us better ROI through SERPs. And need to pay more attention to create and maintain relevant backlinks for our website.

In my opinion following are the best ways to increase the quality of backlinks:

1. Posting in high PR do follow forums
2. Submission in popular directories like Dmoz
3. Bookmarking of web pages in different social bookmarking websites like Digg and stumbleupon

You are absolutely right. Besides that, one should also remember that quality links are given more preference by search engines rather than quantity of links.

The number of legal and illegal techniques are able for generate back link, but implement on legal techniques because illegal techniques drag your website to hell.   

Create backlink by using link building techniques. These include forum posting, blog commenting, social bookmarking and directory submission. It also helpful to get increase the website visitor and helpful to get rank over search engine website.

Hello......
You can get links from the relevant sites to improve your back links,You can find out the relevant blogs and ask them to publish your links from their guest post or blog rolls for that you can provide them good content for their blogs.You can increase your Facebook likes and followers on the twitter and ask them to share or retweet your post so that their followers can see your updates And one most important thing Build your content on the user aspect think like a user and develop your quality content,it should be unique and genuine so that it could make people interest.
Thnx...

You post unique and quality contents on web 2.0 sites.You can also doing article submission,forum posting,social bookmarking strategies for improving back links.

Really nice stratergies to improve backlinks...

In my opinion article submission, blog posting, social bookmarking and blog commenting in high pr sites.