I'm trying to scope out some work for a potential project that requires a fairly robust search component. Mind you, I've done a whole lot of nothing with SharePoint Search, so I'm having to explore things as I come up with an approach. I set up a new Content Source for crawling my little test site site and ran a full crawl, the result of which was 3 items in the index. 3 items…. hmmm… No crawl errors, no errors in the event log, but no results for any of my searches. Weird. Pounding-my-head-on-the-table-after-3-hours-of-trying-to-figure-this-out kinda weird.
Eventually I stumbled across the issue. I had used 'localhost' instead of my server name in the start address of my content source. Stupid me.