Selected answers from the Dumb SEO Questions G+ community.
Jim Munro: One good link from an unexpected source might sometimes be more valuable to you than all of your efforts in this regard. In the meantime reach out to your customers, suppliers and competitors.
Scott Clark: Think of it in the long term however. Link building needs to be woven into your everyday activities. Sometimes the opportunities for Links come when you least expect it. They don`t all have to be huge links either. They can accumulate as smaller links into something that`s both valuable and stable even when Google makes major updates.