Networking in business is always a good thing. It always allows contacts in your field as well as ways to connect with suppliers, buyers, and all topics business related. Anyone related to the business model you are going for such as suppliers and the like are going to be the ones you need to network and build working relationships with. This gives you access to the things that you are going to need for your business as well as connects you with others in your business model. It could also help in colaboration projects in the future pending the type of business you are looking into.
Alot of time, there are different job fairs and expos centered around certain types of businesses where colleagues can get together and network and talk shop. Look into this as well as it can provide you with networking connections related to your business.