Post in forums and discussion boards that make it to the front page of digg.com or other social media sites. Find the posts which are popular and post your review. A thread about general information for a old technology might attract relatively low number of links than the thread which has controversial matter about the latest news in any industry. More peoples links to that page more chances of getting traffic and back links. Try to post good content in sticky threads in forums. Post comments to blog entries and include your link cleverly.
This method of link building is one of the easiest methods. It consumes very little time and yields low quality of links. But it brings good number of visitors to your site.