The site started life in July 1996, when - exasperated that there was no presentation whatsoever online of the world's perhaps most clichéd but also majestic urban concentration, New York City and its skyscrapers - I made the first version of the site available online.

In general, the site consists of two main sections, the building entries divided into four eras as well as the four pages of in-depth analysis in Additional Info.

The division of the entries into four eras (Early Century, Art Deco, International and Post-modernism) is simply an arbitrary arrangement, with architectural "styles" of all the chronologically arranged buildings not necessarily strictly corresponding with the era they're in. Each of the entries link to photo(s) and a location map.
(If the amount of text plagiarized from the entries by other sites - including a major commercial skyscraper data site that has about 400 sentences lifted off my site - is an indication, the text must be rather well-received. That has, on the other hand, led to a full stop of the greatly needed updating of the entries, not continued since the early 2006. So, without plagiarism, the site would be (even) better for other web users...)

In addition to these, New Developments features buildings in planning and construction stages, as well as some that have been cancelled but retained as an example of the "development of a development". The page features also completed developments not yet added to the main entries.

The photos on the site are reachable through the building entries but also have a portal of their own, featuring also non-skyscraper NYC photography as well as Background and Photo Notes.

The Additional Info consists of four pages with topical essays ranging from zoning codes and real estate taxation to telecommunications and advertisement signs to vacancy rates and renovation. This is the portion of the site that most distinguishes it from other skyscraper-related presentations on the Web. Concentrating for years on these essays has, frankly, led to the (only) belatedly made updating or addition of new building entries. But life's tough.

In addition to alphabetical listing, the entries are arranged by architects and developers/developer tenants for those with more than one entry on the site. The whole site is also indexed and searchable with keywords.

As for the updates "announced" on the entrance page (which should be shortened someday), they merely note the updates to the text documents such as Additional Info or Skyscraper press, not to the building entries, which can be even drastically altered without any notification on the updates section.