Spark Contributes to Tumblr’s $4.5 Million Series B Round

Boston’s Spark Capital and New York’s Union Square Ventures are the lead co-investors in a $4.5 million Series B financing round for Tumblr, a tiny New York-based startup that offers a stripped down, extremely user-friendly “microblogging” platform.

The investment, announced this morning, is a huge boost over the startup’s $775,000 initial financing, led last year by Spark and Union Square. Up to now, the core team at Tumblr has consisted of just three people, counting its 22-year-old founder, programmer-entrepreneur David Karp. But the investment has already allowed the company to hire a real executive team, starting with its new president John Maloney, a veteran of CNET and UrbanBaby.com.

Tumblr DashboardWhile there are plenty of free or low-cost blogging platforms such as WordPress, LiveJournal, and Vox, Tumblr has set itself apart by making it easy for users to create short, media-rich posts, often simply by uploading a single quote, link, photograph, song, or video. There’s also a social-networking element to the system: from the main Tumblr dashboard (pictured here), users can browse new posts from their Tumblr friends, and can re-blog the posts they like. (Full disclosure: I’ve been using Tumblr for my own personal blog since late 2007.)

Before founding Tumblr, Karp worked with Maloney for three years at UrbanBaby, a New York-focused discussion site for parents of young children that’s part of CBS’s CNET division. “John’s focus on operations and business frees me to lead product development and scale our platform,” Karp said in a statement. The company plans to launch premium services next year that will start bringing in revenue.

Author: Wade Roush

Between 2007 and 2014, I was a staff editor for Xconomy in Boston and San Francisco. Since 2008 I've been writing a weekly opinion/review column called VOX: The Voice of Xperience. (From 2008 to 2013 the column was known as World Wide Wade.) I've been writing about science and technology professionally since 1994. Before joining Xconomy in 2007, I was a staff member at MIT’s Technology Review from 2001 to 2006, serving as senior editor, San Francisco bureau chief, and executive editor of TechnologyReview.com. Before that, I was the Boston bureau reporter for Science, managing editor of supercomputing publications at NASA Ames Research Center, and Web editor at e-book pioneer NuvoMedia. I have a B.A. in the history of science from Harvard College and a PhD in the history and social study of science and technology from MIT. I've published articles in Science, Technology Review, IEEE Spectrum, Encyclopaedia Brittanica, Technology and Culture, Alaska Airlines Magazine, and World Business, and I've been a guest of NPR, CNN, CNBC, NECN, WGBH and the PBS NewsHour. I'm a frequent conference participant and enjoy opportunities to moderate panel discussions and on-stage chats. My personal site: waderoush.com My social media coordinates: Twitter: @wroush Facebook: facebook.com/wade.roush LinkedIn: linkedin.com/in/waderoush Google+ : google.com/+WadeRoush YouTube: youtube.com/wroush1967 Flickr: flickr.com/photos/wroush/ Pinterest: pinterest.com/waderoush/