The linkerati are internet users who have garnered some authority with their online presence and have a tendency to link out to other quality content. The linkerati are thought to be able to drive great traffic to whoever they link to.
Bloggers, news media and owners of successful websites are part of the linkerati. It's a good idea to focus your outreach efforts on getting the linkerati relevant to your websites topic to link to your site. Do it well and you may one day become part of the linkerati too!
The term "linkerati" was popularised by the well-know SEO guru Rand Fishkin and can also go beyond SEO to describe social media marketers, bloggers or influencers who have the ability to drive traffic to an online campaign.