Search engines are only really useful if you know what you're looking for, though. If you're looking for a specific piece of information. They aren't entirely a substitute for word of mouth, "I'm interested in this kind of stuff, can you give me some suggestions"-type recommendations.
Really?
If I'm "interested in stuff", I go Googling for a few minutes - and am amazed that someone has usually already dedicated an extensive website to the topic. If not, I do one myself.
Hence, "I wonder if anyone out there customizes their own action figures?", "I wonder if anyone has attempted to catalogue every Andorian?", "I wonder if there is a website dedicated to 'Number 96', the Australian prime time soap opera of the 70s?" and "I wonder if anyone else out there likes collecting 'Kooky Spookys'?"
But those are all when you have specific questions in mind already, when you have a specific goal in your searching. It's like the difference between searching for an article on Wikipedia and going on a wikiwalk or hitting "random page" a few times for fun. There's no real equivalent to a wikiwalk on search engines, and collections of websites on a given topic or word of mouth are a lot more like that than like a search engine.