NYC Map
Search NYC Map by neighborhood, CD or zip code, then click on “show additional information,” on the right, which will bring up a menu of services. You can choose Council District and Assembly District, if you scroll down on the right, Then hover around your CD boundary and the Council District and AD will highlight. This site works best on Safari, for some reason.
NYC Green Book Online
NYC Green Book is the official directory of the City of New York, and includes detailed listings of contacts by city, county, state and federal agency.
(Image Source: NYC CityStore)
Campaign Finance
New York City Campaign Finance Searchable Database search by donor or candidate for contributions
NYS Campaign Contributions - search by contributor or candidate