I see a lot of threads with people offering to hand submit sites along with a brief description of the site to hundreds or thousands of directories and it made me curious where these lists were aquired from and is there perhaps a master list or many master lists of directories that these submitters draw upon or do they just build the lists themselves through trial and error?
actually you can find lots of directories list by just searching on the search engines but those lists are of low quality and the service providers make thier list updated everytime by opting the good sites of directories hence it is the best way to make on trial and error.