Are you talking about adding a feature so that our more popular threads get added to Digg? I don't think that would work, as Diggers seem to hate forum threads and blogs, and prefer more news-like sources.
What about making a crappy youtube video about WordForge and all the wonders (cough drama cough) it has to offer? Though I'm afraid of the kind of people we could pick up on youtube.
"Hi, I'm TKO, and I'm here to recruit you to Wordforge.net. See ya then!" We'd pick up tons of people!
What about casually chatting about WF? Or typing about WF? I think I want the option to habitually mention WF.
The "Referrals" number in your profile exists for a reason, but trolling for members is looking for trouble. Quality, not quantity.