Where do you find good multifamily commercial deals? (apartment)

[Ben Feder]

I am beginning to look for deals to analyze so I can make my first investment in large multifamily properties (apartment buildings 10+ units, 50+ units, and 100+ units). Where do I look/who do I ask, etc. to find multifamily properties? Will places like Realtor.com, Trulia, Zillow, etc. cut it or should I be checking other places? If I am to get good deals coming my way from agents/brokers, how can I expect to be the one given the good deals over other people who are already close/friends with the agents/brokers? Thank you in advance to you for any and all advice given.