Now days, every webmaster has at least one web directory, but can they make money for you?   It is nice business model if you do it right.  Most directories are low quality meaning not much contents, low backlinks, or low quality web sites, there are high quality web directories just doing fine with earnings and expanding their business.  I have two general, directlinks.us and lucky7.net and two niches directory I just starting.   They are not making much money but building quality.  I found two great artcles today, one is general how to create a successful web directory and one is interview with BOTW ceo.

Make $1 000 000 with paid directory a year.

The Secrets of BOTW’s Success Revealed

John Scott, owner of v7n.com, use to make $50k per month with his directory and still doing pretty good with his directories.  So there is still market to make money, but directory requires good amount of initial investments and time to build good quality.