One way links are also known as non-reciprocal links or incoming links. One way links are a great way to increase link popularity and achieve higher ranking in the search engines. Incoming links are important in the Page Rank system, because they are seen as "votes" for your site, and the more "votes" you get, the more important your site is considered, and the higher it is placed in Google's search results. However, achieving one way links are not always very easy. So how does one go about acquiring one way links for a website? Here are some suggestions:

Web Directories:
Get your site listed in the major human edited directories. There are a lot of directories which don't ask for a link back. Submitting websites to directories creates a high value one way link to a website.

Unique Content:
If you have very interesting and unique content on your site, people will naturally link to it!

Forums:
Many forums allow you to register, add a comment and sign your comment with a website. This also creates one way links to your website.

Online Articles:
Write a decent article about your subject and submit them to the many article
directories. They make your articles available to others to pick up and post on their sites, as long as they include your author section, which will have a link back to your site. Every time your article gets picked up, you just gained another one-way link.

Blog Comments:
Blogs are just like forums. Posting comments on blogs with html code is another way to create one way links.

Free Stuff:
Another great way to create a lot of inbound links is to create a free tool or book that other think is worth linking to.

Testimonials:
If you've used a product or service online, you should consider writing a TESTIMONIAL for the same with a link to your website at the bottom. This will give you a one way link.

Guest Books:
Many websites have a section called guestbook. These sites ask you to sign their guestbook and many of these guest books also permit HTML code in the guestbook comments. This way you can get one way links.

Paid Links:
Along with these techniques, there is the option of paying to achieve one way links. There are a number of websites that will link to your website for a one time or monthly fee.

If you apply these methods you will not only get some high-quality one way links but you will also boost the page rank of your website.