On Viadeo, your network is based on your contacts and the contacts of your contacts.
In a broader sense, your network is the entire Viadeo membership.
When you check out a profile, you will see on the left side of the business card the pictures of the members which separate you. For example, if Helen is in Jane’s network and Wayne is in Helen’s network, then Jane will see her own picture and Helen’s picture on the left side of Wayne’s business card.
Advice: as in real life, it is best to invite people you already know. If you are looking for clients, suppliers, or partners, click on their name, and use the Send a message feature instead.