The only reason blogs are missing from the iloggers list is because people haven’t submitted their site and that of course is entirely their prerogative.
In the past when, I would add weblogs as I found them, however this led to problems, a minority did not wish to be listed and asked to be removed, so I don’t do this anymore.
Is the list incomplete? Yes.
Is it outdated? No.
I’ve added over 100 sites in the last year and requests for modifications are dealt with as rapidly as time permits.