Since I don't really have the time to set up a link weblog and it doesn't seem to be really easy using wordpress, I'll use link dumps like other weblogs do. (I provided some titles.)
Very interesting, that w3c hyperlink module... So we could set user style sheets to override new-window settings? Kinda cool...
Oh, and for your link log: WP-Recent Links.
I store my links using del.icio.us, which lets me access my bookmarks as an RSS feed. I then use an MT plugin to access the feed and include it on my site. A quick google turned up a wordpress support article which seems to imply you could do something similar with Wordpress.
personally, i'm scared of the new target bologna... I'm of the opinion that USERS should always dictate where a hyperlink is opened.
Doesn't really fit in with the whole structure/content seperation loveliness