Three years after selling their news aggregation site to Conde Nast, Reddit co-founders Steve Huffman and Alexis Ohanian are leaving the company. In a blog post, Huffman and Ohanian say that their contracts were up and that they’ve decided to focus on other interests. Christopher Slowe, a third early employee at the company, is staying with the site. As part of its recent layoffs, Conde Nast reorganized its digital sales group, dividing its 26 online brands into five categories, including technology.