As real estate professionals, we talk a lot about finding the fastest (and least labor-intensive) path to generate real estate leads. And when a certain lead gen strategy has been producing consistent results for your team, it's hard to think that there's any reason to diversify. But if you are siloing your efforts to only one source, you are placing an extremely risky bet. Where do you expect to get your best real estate prospects this year? Here is where agents, team leaders, and broker-owners are finding success with online real estate leads in 2015, as reported in a recent survey by Inman.