LinkedIn is a powerful tool for businesses to grow their network and find new clients if used properly. The key things to do are to fully complete your profile, connect with contacts and import your email contacts, actively participate in groups in your industry, answer and ask questions to become seen as an expert, regularly publish useful content, and optimize your profile for search engines. It is also important to engage on mobile, monitor your network's updates, and avoid being overly self-promotional or ignoring connection requests. While it takes time, fully utilizing LinkedIn's features can help businesses find new opportunities.