There used to be a 'web' button on each HN comments page, between 'past' and 'favorite' (looks like https://archive.is/IkXqk), which basically Googles the title for you. It's useful for finding original/alternative/more reputable sources, and sometimes for bypassing paywalls, either through an alternative source or through Google's cached copy. Sure you can just copy the title and Google it yourself, but as someone who often browses HN from an iPad I find it pretty handy.
It seems just gone now (I think I last used it within the past couple of days)? Wonder if I'm the only one who gives a damn about it. Would love to hear from dang or another mod about the rationale behind the removal, too. I thought to email the mods but decided to post an Ask HN on the off chance this resonates with people.