With hundreds, if not thousands of articles on link building, it’s hard to deliver original content that was not mentioned or discussed elsewhere. In this article you will find some less-than-obvious link building techniques and tips.
Exchange links with business partners - Ask for a link from your business customers or contractors. You can also make linking a mandatory part of the contract; there are no rules against it. If you do include it in the contract, make sure to mention that the link must be located on a page accessible to search engines (a password-protected page or intranet does not work).
Publish Technical Papers - The right technical papers can get .edu/.lib links, as well as attract occasional geeks. Post highly scientific and technical information that you have (and don’t mind sharing) and shoot several link requests to college and university domains. Your yield may be only one or two links in a few weeks, but those can beat 100 cheap links in power.
Share All Information That You Have - Whatever you have on your disks, hard drives, diskettes, college/university studies – share it with the world (as long as you don’t mind). It may seem like gibberish to you, but if you get 10 decent links, then it's worth the effort.
Seminars, Trade Shows, Speaking Engagement etc. - Every time you participate in industry seminars, trade shows and other engagements, don’t forget to ask for a link. You’ll need to nag several people, but it’s worth the effort, since many government websites link to seminar/trade show websites, passing trust rank that eventually flows to you.
Professional Organizations - If you’re a member of a professional organization (chamber of commerce, etc) ask for a link from their website. If you’re not a member of any organization, then budget some money and join several good ones. Talk to the staff if they require articles, speakers or other help in exchange for a link.
Create Detailed Walk Throughs – A walk through is a step-by-step guide on connecting hardware, setting up software, taking apart a vehicle, etc. Walk throughs help people get from A to Z in easy-to-understand language, supported by pictures and a clear format. For example, you could do an article on how to remove Microsoft Vista and replace it with Windows XP.
Conspire with Friends – Tell all your friends to start blogging and then get all of them to link to your websites... for a beer (or whatever it is you drink out there). Once your article gets on social media sites like Reddit, Digg and others, convince your friends to vote for it.
Link Trading 
