Link building is not as simple as writing a few articles or creating web 2.0 properties. There are a lot more advanced techniques in regards to how to get backlinks. Here are some of more advanced ways.

Go viral. Create a link bait and allow people to link to you. Give them tools to link to you and ask them to do it. If you’re good at this, it can be the only way you’re gonna do link building.

Create networks of sites. Don’t just settle with one site in the niche. The more sites you have the more people you reach, and the more power in search engines you have. Having a few good sites in the niche can enable you to rank without having to seek for links elsewhere.