Jennifer Bishop, a LinkedIn expert from Melbourne, Australia, argues that LinkedIn participation and profiles seriously reflect professionals' online brands. With over 100 million users globally and 1.3 million in Australia, LinkedIn leads business conversations where Facebook and Twitter lead social conversations. Bishop says professionals must establish social media policies to manage risks and should have complete LinkedIn profiles linked to their websites and companies to leverage LinkedIn's search engine optimization power. Bishop also notes LinkedIn allows businesses to actively engage with customers and employees to build their brands.