Updates with posts from Michael Dell, Ellen DeGeneres and others.NEW YORK ( TheStreet) -- Minutes after Apple announced that co-founder Steve Jobs had died, fans and peers shared their memories and condolences on Facebook, Twitter and other social networks. Here are some of their posts: Microsoft Co-Founder Bill Gates: For those of us lucky enough to get to work with Steve, it's been an insanely great honor. I will miss Steve immensely. Melinda and I extend our sincere condolences to Steve Jobs' family & friends. The world rarely sees someone who made such a profound impact. Facebook CEO Mark Zuckerberg on his Facebook page: Steve, thank you for being a mentor and a friend. Thanks for showing that what you build can change the world. I will miss you. Michael Bloomberg, mayor of New York, on Twitter: Steve's passionate belief in the power of technology brought us knowledge and power that is reshaping the face of civilization. Steve Jobs saw the future and brought it to life long before most people could even see the horizon Steve Jobs was a genius who will be remembered with Edison and Einstein. His ideas will shape the world for generations President Obama on Steve Jobs via the White House Twitter feed: Bold enough to believe he could change the world and talented enough to do it ... He changed the way each of us sees the world" Steve Wozniak, Apple co-founder, via Twitter: Keeping family dinner despite the disturbing news. Google Co-Founder Larry Page via Google+: I am very, very sad to hear the news about Steve. He was a great man with incredible achievements and amazing brilliance. He always seemed to be able to say in very few words what you actually should have been thinking before you thought it. His focus on the user experience above all else has always been an inspiration to me. He was very kind to reach out to me as I became CEO of Google and spend time offering his advice and knowledge even though he was not at all well. My thoughts and Google's are with his family and the whole Apple family. Google Co-Founder Sergey Brin via Google+: From the earliest days of Google, whenever Larry and I sought inspiration for vision and leadership, we needed to look no farther than Cupertino. Steve, your passion for excellence is felt by anyone who has ever touched an Apple product (including the macbook I am writing this on right now). And I have witnessed it in person the few times we have met.