Themes are the best for getting links to your site

One of the most effective forms of getting hundreds of links towards your Website is to create themes for Wordpress, Blogger or other systems, beacuse in most of the cases, you leave a link, and ethically it is not possible to be erased. That means that you will be able to obtain by each post in blog a link towards your page, that will increase considerably your PageRank.

If it is very good, it will be used by hundred of blogs which will create thousands of posts and with them a link with each.

It is more profitable to distribute a free theme than selling because you will obtain many links to your page and that would cost you too much.

If you think in selling a theme, think it twice.