I have made so many good connections, to really great businesspeople - I am friends with the former CEO of Adidas, I have met Paul Kemsley (a property entrepreneur), and locally there are numerous individuals I know well who are successful businesspeople (i.e. the Vice-Chair of Watford FC). But all connections have their good points, and I believe in getting a lot of contacts, but really getting to know those who will be willing to help you, and you would be willing to help.
But networking is all about reciprocation - You get out what you put in, and it’s important that you respect people and how much time they are giving up, so always finish your emails with “Thanks very much” or end a phone call with “Thanks for your time”. It shows you care, and engenders a certain gratitude from them too…People like giving advice, but only when they know it’s appreciated.