The New England Historical and Genealogical Society (NEHGS), founded in 1845, is the oldest and most respected genealogical organization that exists. For much of its history the NEHGS was focused on genealogical research in New England. However, in recent years the NEHGS has greatly expanded its interests to beyond New England, especially to New York, Pennsylvania and Virginia. This is reflected most obviously in the changing of the name of their website from NewEnglandAncestors.org to AmericanAncestors.org.
Those researching their New Netherland ancestries should not ignore the NEHGS and the new website. Over the past few years the NEHGS has added to its database collection, back issues of New Netherland Connections (NNC), The American Genealogist (TAG), Pennsylvania Genealogical Magazine (PGM), and most recently, the first five volumes of the New York Genealogical and Biographical Record (NYGBR or simply, the RECORD). Other new additions are Abstracts of New York County Wills, 1662-1801 and Haring, Clark, Denton, White, Griggs, Judd, genealogical notes of these early, related, New York families by Peter H. Judd, author of More Lasting than Brass.
Although there are a few Free Databases available, access to the majority of the website is limited to members. An annual, individual membership is $75, and as I have been a member for some years now, I will not hesitate to say that is the best value among genealogical memberships (whether to societies or online services such as Ancestry.com) that you will find. This is especially true now that they have expanded widely past the New England region.