Do off page task, it will increase backlink, but make sure that you will submit your site or content in quality sites, because now google is very concern about backlink quality.
Try to angela and paul backlinks to make a brilliant way to develop more and more backlink to generate traffic on your site.
for increasing back links you need off page techniques. make back links by submission in directory, bookmarking, classified, article, blog commenting, forum posting , guest blog posting etc.
This is the process which is done to increase keywords ranking for site. As we all know that Google is giving importance to quality links. Getting natural back links for the site means boost ranking in SERP. There are many savvy marketer who works as per the Search Engine Algorithm. Want to see your site top of the search engine will have to go with search engine algorithm. Find The Following Link Building Contents to improve site ranking: 1) Press Release 2) Article 3) Social Bookmarking 4) Blog Commenting 5) Directory Submission 6) Blog Url Submission 7) Search Engine Submisison
I have been commenting on many blog until I find out that they are NO-FOLLOW . Total wait of my time commenting
Dont forget about high traffic classifieds websites. Here there is a list of hundreds of classifieds websites for your dofollow link building and also here is another list of hundreds of classifieds websites for link building (no registration needed)