Aviva's Strongest Directories
Provides a list of general web directories sorted by MOZ' Domain Authority.
Best Web Directories
Rankings and reviews of free and paid web directories. Manual submission service available.
Comparison between web directories
A sortable table providing a comparison of directories based on Page Rank, mozRank, editorial discretion.
Searchable, human-edited, statistical guide to web directories. Includes submission tracking system.
Lists and describes free, paid, article, niche and blog directories.
Web Directory Forum
Web directories and directory scripts, search engines, and other related topics of interest are discussed here.
Web Directory List
Provides a list of general and niche directories. Users can review and rate the listed directories.
Web Directory Reviews
Reviews of web directories based on various criteria. A blog, interviews and relevant articles are available as well.
A directory of directories of categorized niche and regional directories.