I've built pages with far more outgoing links then incoming links which are noticible SE traffic pullers. Instead of relying on lots of cheap incoming links those pages rely on a few key backlinks and nothing more.
Also, I've noticed some pages get a sudden
favorable treatment from Google for a short while after I added one way outgoing links to "high quality" pages. That doesn't tell me linking out will get me SE traffic, but it does tell me that I shouldn't be afraid of adding relevant outgoing links.
That being said, I think adding one way incoming links from your freesites IS a nice little SE bot attention getter, but having fresh content show up on our LL gives them something to actually chew on. Just $0.02
