SEO is getting harder and harder these days, with Google penalizing or outright banning techniques that were previously accepted (for a good reason, I would say) – one must be careful. This post covers private link networks and how to stay under Google’s radar.
The basic rules of SEO are mostly the same – create great content, make sure your website is Google-friendly (and Bing will follow), and get as many high quality links as possible.
The bag of tricks to get backlinks might have been exhausted and a lot smaller than few years before.
Building private link networks, if done correctly, is still something that can boost your site’s rankings.
This is how it should be done.