InterBase

BrookStone Systems
Provides ibCollate collation drivers and the Collation Construction Kit.
http://www.brookstonesystems.com/

Clever Components Interbase DataPump
Interbase DataPump pumps data and helps to migrate from any ADO/BDE/ODBC and all native Interbase/Firebird sources into Interbase/Firebird databases. Generates SQL scripts to create Interbase/Firebird database based on given ADO/BDE/ODBC source. Can be used for generic update/replication.
http://www.clevercomponents.com/products/datapump/ibdatapump.asp

CopyCat replication suite
A set of Interbase/Firebird replication components for Delphi and C++Builder.
http://www.microtec.fr/copycat/

Devrace FIBPlus
A suite of components for direct access to FireBird and Interbase. Full support of SQLDialect 3, support of array-fields, emulation of boolean fields, multi-table and multi-transaction modification of data.
http://www.devrace.com/en/fibplus/

Easysoft
Commercial ODBC 3.5 driver, available with UNICODE support.
http://www.easysoft.com/products/data_access/odbc_interbase_driver/

EMS IB Manager
A tool for administering InterBase servers. It provides a graphical interface for maintaining databases and database objects, managing table data, building SQL queries, and managing users.
http://www.sqlmanager.net/products/ibfb/manager

Gemini
Commercial native ODBC driver for Windows 9x, NT, and 2000. Works over Novell Netware IPX/SPX and TCP/IP.
http://www.ibdatabase.com

Going Virtual
Zope (and Python) database adapter available as a win32 binary.
http://clientes.netvisao.pt/luiforra/ib/

IB LogManager
A data logging utility that is integrated into the database. Available as a stand-alone application, EMS QuickDesk plug-in, or IB Expert plug-in.
http://www.iblogmanager.com

IBPhoenix
IBPhoenix Inc provides developer information and support services.
http://www.ibphoenix.com

IBPP
An open-source client interface that allows access from any C++ application.
http://www.ibpp.org

ibWebAdmin
A web based administration tool for database servers.
http://www.ibwebadmin.net

Installation
Information on installation and deployment, including FAQs.
http://ibinstall.defined.net/

InterBase
An open-source, high performance, cross-platform, SQL-92 RDBMS. Source code and binaries can be downloaded. Boxed sets, including documentation can be purchased.
http://www.borland.com/interbase

The InterBase and Firebird Developer Magazine
A database development magazine with a free electronic version and proprietary paper version.
http://www.ibdeveloper.com

InterBase Objects
Delphi and C++ Builder components for access without BDE or ODBC.
http://www.ibobjects.com

InterBase recovery tools and services
Repair tools and techniques. Common InterBase database corruption problems are described.
http://www.ib-aid.com

InterBase World
Interviews, news, technical articles and other information.
http://www.interbase-world.com

Interbase/Firebird Development Studio
Database design and management tools, including grant manager, SQL debugger and query analyzer.
http://www.sqlly.com

Kinterbasdb
Module that allows access from Python.
http://kinterbasdb.sourceforge.net/

SR Master
SR UDFs Library - a user defined function library (120 UDF) for InterBase and Firebird on the Windows platform. This version of SR UDFs Library supports the following routines: Math, File, DateTime, String and routines for converting different measurement units.
http://www.srmaster.com