Forum Moderators: Robert Charlton & goodroi
site: used to show purely random pages a year or so ago. Now site: tends to show shorter urls higher instead of a random order.
We do use a few different factors...It's kind of a combination. We're trying to surface the pages we think are useful, either according to PageRank or interesting in terms of being relatively short [the URL is relatively short] so it's something that's pretty important or pretty close to your root page.