Organic link building is defined by building links to your website directly, without the need to rely on other forms of software like AdSense. In some ways, building links manually can develop your reader base on a much bigger scale and faster rate as compared to relying solely on ads.
Here are a few simple ways of which you can perform organic link building
Perhaps one of the best ways to create and build your presence online is to participate in the community. Volunteering to answer questions that people post on other websites will help you gain a positive image. People will be grateful that you took the time to help them and they will link back your replies to your site.
There are many other ways that you can use to build your website's presence online besides answering people's questions. You should think about making videos of you talking about the material that is related to your website. It is more entertaining to watch someone talk than to read about what he has to say. People feel more engaged and might even resort to contacting you directly on their site about what they think of you in the video.
Support Open Source
A sure fire way to gain support from the community is to release open sourced software that is free for people to download. It may require a little bit of your own technical skill to create something that people will find useful but people will still feel grateful that you took the time to release something out that might benefit other users.
If you don't have the knowhow to create a program from scratch, you can easily hop on to the existing free Open Source communities available online. You could even consider making your own extension to Mozilla's Firefox.
Perhaps one of the worst ways to build organic links, dedicating yourself towards complaining about everything under the sun might gain you temporary support from likeminded members of the community. However, this method does not last as people who complain all the time are generally seen as being negative and will be avoided.
These are but some of the few ways to build your own links organically. SEO links are the life of a website so you need to constantly build your online presence in a positive manner to encourage back linking to your website.