Networking events should not, in my opinion, be viewed as direct referral sources. At least that goes for saying in my profession as an attorney.
I tell my friends who are interested in networking that they should do it, but don't expect to get hot referrals right away. You'll make contacts that you have to develop relationships with before they are comfortable referring clients.
Also, watch out for the quid pro quo people, who expect you to give a referral for each one you get. Not all of us can do that. In my field, if a CFP refers a client to me, he or she can't expect me to refer one right back. Most of my clients already have a CFP and it isn't my place to tell them to switch just because I have to give a referral source a quid pro quo. I explain to my contacts that I offer other things, such as free consultations and free workshops for their clients, general legal advice directly to the CFP for no charge, etc. The intangibles are a good thing that I can give back even if I can't give a client referral every time.
That being said, go to networking events. You'll shake hands and mix it up with a bunch of people and, if nothing else, you'll boost your people skills which helps you get customers and clients easier through your charisma and persuasion.
The messages posted by this user in the forums should not be construed as legal advice, nor do my posts create an attorney/client relationship.