While Pew Internet has broken down Information and Communication Technology (ICT) users into 10 groups based on how they use the internet and cellphones, Forrester Research has created a ladder showing how consumers engage with internet technology. Their study of US adult online consumers found that 52% didn’t participate in any social networking activities.

Here’s the chart Charlene Li posted on her blog. The rungs at the top of the ladder indicate a higher level of participation.

Like the Pew study, the Forrester study places those who engage with blogging and video creation as the high end of the tech spectrum, though here, they’re at 13% vs the 8% in the Pew study.