New York, County Marriages, 1908-1935 at FamilySearch.org

In 1908, New York began requiring marriage records for all counties. Now the FamilySearch website has begun to add these records to it's Historical Collections Databases. While the counties are included, New York and its boroughs are not included. The collection as of today is a little over 40% complete and includes over 558,000 images. More will be added as the indexing is complete.

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The collection is very easy to find as it is included in the section for United States databases. The record itself is listed as New York, County Marriages, 1908-1935.
The collection is name searchable. Looking for a family that I am familiar with, I did a search for Samuel Goldberg who was born in 1882 in England. I know he married a woman by the names of Yetta, who was born in Russia in about 1889. As of the 1940 United States Census, this family is living in Rochester, New York. That record is below:

Doing the search I was able to locate the following record:

 Going one step further, I was able to click on the link that allowed me to view the original record. That record shows that the happy couple were also married in Rochester.

As with all FamilySearch databases, it free of charge and available to all.