Terroir Tools has evolved into a list of existing scholarly tool directories that are actively maintained by others. If you know of relevant directories that are not on this list, please add them.
Online Databases & Directories
DiRT - A wiki with information about tools and resources that can help scholars (particularly in the humanities and social sciences) conduct research more efficiently or creatively.
WikiTADA - Text Analysis Developers Alliance - The Text Analysis Developers Alliance is an international group of designers and developers of text analysis tools. The mission of TADA is to encourage collaboration among researchers and to provide useful resources to developers and users.