I think phpLD is the most user friendly web directory and I like to submit to directories with this system. To make my work easier I made a list of phpLD directories(for personal use), but I decide to share it with you.
PR4
SEO Court Directory
Arakne-links.com
Add Site Link
Ablazedirectory.com
PR3
Campp General Directory
Seo-webtool.com
Agrieducation.org
Find2k.com
Gainweb.org
Zingery.com
Veritastic.net
ProjectUltra.com
Lesterloyd.com
OPAnetworkd.com
Hitalyzer.com
Yassef.com
Picna.com
a2zwebindex.com
AAAwebdirectory.com
ISMB02
Domaining.in
Psucollegianalums.com
JHUCR
Directory.Seoexecutive.com
PegasusDirectory
Clarib
Add URL Free
Linkdirectory.com.ar
PR2
Sams Directory
Yes! Directory
ZBestLinks
The Free Directory
Raiisa.com
Add New Link
Cool Seller
PR1
Legal Directory
Mahikhanonline
PR0
Microbicides2004
F-reaks.com Directory
1 More Link
Qatelier.com
World Site Directory
ZoZoDirectory.com
Express Visits Directory
Playground3.com
a2adir.info
K-Links Directory
Addurlonline.com
Blpdirectory.info
AddYourWebpage.net