Not every article, just those I find remotely interesting. If other people also find the article interesting it gets upvoted. That's kinda the whole point behin

Not every article, just those I find remotely interesting. If other people also find the article interesting it gets upvoted. That's kinda the whole point behind these social news sites. As far as the front page thing, that's because it only takes 2 points to make it to the front page. So a big site like techcrunch that has a couple million users, is more likely to hit that threshold. Well nothing(maybe the name of the company/other products), but then I haven't seen the original thread when I submitted, since the submit link sends you directly to the submit page.