Mike encouraged anyone with a little email lists australia skills to look into all the data on SEOmoz and really look into what makes a post link worthy. For this post we will be looking only at In Linking Domains (ILDs) which is a great way to determine if a post is popular throughout the net. For example if you have a site like dummy-domain.com that links to your post 1,000 times throughout its site, it would count as 1 ILD.

A great viral post will have a large number of ILDs along with a large number of links. LET'S START WITH THE DATA Much like Mike’s data, there were some categories that collected more links than others. , Link Building (1,448 domains), Google (1,419 domains), Technical Issues (1,243 domains), Miscellaneous (1,215 domains), and Whiteboard Friday (1,044 domains). See the graph below for the top 30 of the SEOmoz categories.