At age 25, Tumblr founder David Karp created a fast-growing international social media, blogging platform.
Using money he acquired as a software consultant, Karp began Tumblr in 2007, when other blogging platform had already been widely available. As Karp mentioned in an interview the TechCrunch, Karp saw an opportunity to create a medium for digital postings that were more substantial than a tweet but less verbose than a full blog post.
Tumblr has since taken off among users, and Karp has since built a fortune for himself, with an estimated $40 million in funding.
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