For a long time, I thought of Tumblr as topic-based image blogging platform, You may imagine it as a collection of pictures for a particular subject. I see it as part of micro-blogging and a part of social media at the same time, here is 5 facts you should definitely know about Tumblr :
There’s kind of a lot of porn
But while most any corner of the Web that allows user posts is bound to have its share of naughty bits, Tumblr has become a go-to spot for adult-entertainment industry types and amateur smut-lovers alike.
Tumblr is most popular among young adults: 13% of 18- to-29-year-olds said they used the service. But it still ranked last among that age group of the five social media companies we asked about.
Unlike other social media platforms, Tumblr users are equally divided between men and women. Facebook, Instagram and Pinterest all are more popular among women; men are slightly more likely than women to use Twitter.
Tumblr’s users are clustered at the low and high ends of the income scale: 8% of people with household incomes above $75,000 report using it, as well as 6% of people with incomes below $30,000.
Like most other social networking services, Tumblr tends to skew toward the urban and educated. Seven percent of urban Internet users say they use Tumblr, as does the same percentage of online users with college degrees.