A few years ago there was an Ask HN thread asking people here to show off their personal sites (https://news.ycombinator.com/item?id=30934529). Reading that thread gave me the idea to build indieblog.page (previously discussed at https://news.ycombinator.com/item?id=31002171). The list of blogs grew to nearly 5000 in the last years.

Alex Schroeder suggested to add a search engine on top of people's feeds as a way to search the Indieweb without adding even more crawlers to our collective infrastructure. I think it's a pretty cool way to quickly see what others have written on any given topic.