ImageMapper - ArcView extension allowing users to translate Views directly into clickable maps in HTML format.

AVPython: Python Language Support for ArcView GIS - Allows use of the Python programming language to customize ArcView GIS.

Minnesota DNR - ArcView Resources - A collection of Avenue scripts, ArcView extensions and tips that are used by the Minnesota Department of Natural Resources.

Stuff for ArcView Users - Avenue scripts for ArcView versions 2.1 to 3.x. Many scripts are the results of the author's research and development, including Avenue implementations of various mathematical concepts.

USC GIS Short Course Handouts - Basic information for Arcview and Avenue scripting. Several handouts available.

XTools Description - Suite of tools to enhance ArcView.

Scott Steigerwald's Avenue Coding Standards - Coding standards for the Avenue scripting language.

Spatial Online - Site for ESRI ArcView users and developers. Provides a free evaluation and secure purchase of ArcView extensions and spatial applications.

TMG's Free ArcView Resources - Links to ArcView resources available for free.

APR Director Online - ArcView extension for managing project (.apr) files.

GIS Data and Application Security - A white paper by Mark Ontkush of Rutgers University dicussing issues related to data and application security. Topics include commonly used methods of encrypting scripts.

Directions Magazine - Free Tools - Script library hosted by Directions Magazine.

GeoCommunity - Avenue Scripts and Downloads - Avenue script library hosted by the GeoCommunity. Some scripts are cross-posted on ESRI's ArcScripts site.

ArcView Developer Resources - Information on finding scripts as well as tips to help with programming in Avenue.