1. Is it a good idea start a directory with a specific topic? ex: gamedirectory.com, auctiondirectory.com I would imagine there would be a lot less visitors to the site, but more webmaster would pay to have their site with the same topic listed. 2. Do topic directory rank better if searched with something+directory? 3. Do domains contain "directory" rank better than those with "dir" ? 4. Similar with Q3, Do domains contain "directory" rank better than those with no keyword phrase at all? Thanks in advance.