Most directories are useless rubbish
Bog standard web directories are not worth a cold cup of ****. A directory that sells on the basis of PR is asking for its link-pop-pass on ability to be stripped away.
See, for me, the whole get links from lots of directories on different IP’s thing is so frickin 2003 its not even funny any more! Most can be knocked up in two seconds flat and then populated with a dmoz script or Y! scrape. Most if not 99.9% of them offer very little value at all othe than the ability for joe bloggs to be able to drill down and find or add a site in an area they want to. Usually they are plastered with
adsense adverts in the head of the document, designed to attract the users eye and take them away from the people who have paid to list. Funny.