What is Linkbuilding?
Without A doubt, one of the hardest and most time consuming parts of a good SEO campaign is linkbuilding.
You probably receive countless emails offering 1000's of high pr links for £25 a month, these services are called link farms. Read this article about why this way of linking is not only a waste of time but can actually damage your website.
The key to linkbuilding is to make it look natural. Relevant backlinks from sites that are relevant to your own business (think suppliers, customers, forums in your field, relevant directories.