Political and tech blogs are the most popular types of blogs in the United States according to a new study.

A new study by global PR firm Edelman and blog-tracking service Technorati has determined that blogs covering tech news and political commentary dominate the list of top 10 blogs, AdWeek reports. Four of the top blogs were tech related and four were devoted to political passions on the left and right.

In the list of the top 100 blogs in the United States, 34 are about technology, 26 cover culture and 25 deal with politics. Personal blogs accounted for only 3 of the top 100 - far lower than in other countries.

Technorati ranks blogs based on the number of sites linking to a blog within the previous six months. It estimates that the total number of blogs at over 56 million, with over 1.2 million posts written daily.