The talent exodus continues at AOL. The latest to give her notice, according to Business Insider, is TechCrunch CEO Heather Harde. Harde, a former News Corp. executive who joined TechCrunch five years ago, had stuck around after the site's founder, Michael Arrington, left in September after being stripped of his editorial duties in a very public confrontation with AOL editor in chief Arianna Huffington.