Try read and learn nice article and best blogging tips from Wayne Liew Dot Com about 20 ways to get constant post level links. This is a two part article and this some points that expressed in that article

Post level links are links that are generated within a blog post. You will get noticed of it via Technorati or a trackback will be generated.

The Importance of Post Level Links from Blogs

• Targeted traffic
• Technorati rankings
• Relevance of links
• Increase Google Page Rank and search engine keywords ranking
• Coverage for blog and brand

10 Ways on Getting Constant Post Level Links from Blogs

Definition articles

Great blog designGet your blog or articles featured on big blogs, FREQUENTLY

Give out links

They will hop over, take a look at your blog and a link from them is possible if your posts are interesting to them. Apart from linking to top bloggers, one should place effort on finding small blogs with equal or greater contents to be linked as these bloggers will pay more attention to you.
Thank the linkers

A new link pointing to your blog will also be featured in the information page of your blog on Technorati. Take a few minutes of your time to hop over and appreciate those who linked you.

Ongoing linking contest

A popular way to get links is to hold a linking contest on your blog.

Participation in blogs giving out links

Constant link giving blogs often have a link giveaway post during the weekends. Commenting on such blogs will get the bloggers’ attention and if they are interested in your articles, a link might be given to you.
Networking with link givers

Make friends with link givers, interact with them. The blogger might be put off by you and leave you no chance of getting near the blogger ever because of the bad impression you have set for yourself.

Make yourself an icon within your niche

Theme databasePosts like 100 Excellent Free WordPress Themes is very successful even though it does not offer self-made themes. You need not to be a theme designer to build up a theme database.

Source : http://feeds.feedburner.com/~r/WayneLiewDotCom/~3/214314109/