A business network can be defined as a group of people that have some kind of commercial relationship. For example the relationships between boss-employee, buyer-supplier, and colleague-colleague.
According to experts, business networking functions best when individuals offer to help others to find connections, rather than "cold-calling" on prospects themselves. Business networking can take place outside of traditional business environments. For example, public places such as airports, restaurants, and movie line-ups provide opportunities to make new business contacts if an individual has good social skills. (wikipedia.com)

Categories of interest in the arena of networking/social

After hours events
Dutch treat lunches
Eye openers or morning get togethers
Leads groups
Intramural or recreational sports
Sporting events
General recreation
Cultural activities
Other

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