Directories don't work as they used to work before. There are thousands of directories out there with no results. Generating money from directories is still possible. However, it is not the best way of making cash.
I have setup my own directory, from Google analytic report (referal links), it answer me. Webmaster is major visitor.
My oppinion is mostly webmasters to add their sites. Visitors can search for what they want on google. its much easier..
I tend to disagree there. A good, well organized directory can be far more effective then Google. I have found too many searches that simply did not match the search query.
Quite simply , search engines visit web directories and in turn those visiting search engines end up visiting those directories indirectly via links in the search engines which drives traffic to the sites listed in the directories..
I start to surf web directories when I start my own blog. It's hard to see people search web directories. Most people search google when want to find any information.