Red Sweater Software today announced that it has acquired MarsEdit, the popular weblog publishing software from NewsGator Technologies. Daniel Jalkut, the founder of Red Sweater Software, is himself an avid blogger. “MarsEdit has long been one of my favorite applications, so it’s a thrill to welcome it into the Red Sweater family of products,” he said. “I am both passionate and confident about steering MarsEdit into the future.” Red Sweater Software will continue to offer existing MarsEdit customers free upgrades for all 1.x releases of the product.