Directory of directories
Almost every webmaster has list of free directories to promote a website. I found that directories of good directories became more popular than ever. Only Directory Critic jumped to top 10 000 according Alexa in less than 1 year. They have 1000s visitors already.
Some directories lists websites die because webmasters just list 500-2000 free directories and never update them. In 2-3 monthes you can throw this list in the trash because bunch directories don’t offer free submissions anymore, dissapear, got sold, redirect.
Here the 2 directory of directories who keep their list updated all the time.