was wondering if we could add a way to tag articles. I don't think there is one right now, unless I missed it.
It could appear similar to your 'have it' 'love it'... lists.
My own experience:
I was browsing some recent changes and found an article for a DIY computer. I had a parts list I would have like to use as a reference. Yet, there was no way to bookmark the article within productwiki. Articles have del.ic.ious links and what not, but it would be nice to have something internal to productwiki.