Major Contributors

What follows is a list of major contributors to the ISFDB until May 2006. This is a rough order rounded to nearest 5000 titles:

50,000	Al von Ruff	These were entries from various encyclopedias that were pounded in via keyboard.
50,000	Dissembler	This is a webbot that cruises numerous sites and populates the database. Dissembler entered about 95% of all the data entered in the ISFDB in 2003–2006.
20,000	NESFA database	The NESFA database is also part of the Locus Index through 1989. This was the first major database merged with the ISFDB.
15,000	Michael J. Cross database	Mike's database was the 3rd major database to be integrated. Mike also contributed a ton of UK magazines, and probably 40% of all the review data.
15,000	David G. Grubbs	The ISFDB started as an awards database, and our initial release was heavily populated with titles from David's award database.
15,000	User Submissions	These were entered primarily in 1996–1999.
10,000	John Boston database	John's database was the 2nd major database to be integrated. John also entered a ton of books as forthcoming books editor.
5,000	Cary Thomas	Cary supplied 15–20 years worth of Analog and Astounding magazine data.

Major Contributors Since May 2006