Here's something of a search engine for IPFS: https://ipfs-search.com/ https://ipfs-search.com/ It works by crawling the DHT, though I don't think it's quite p

Here's something of a search engine for IPFS: https://ipfs-search.com/ https://ipfs-search.com/ It works by crawling the DHT, though I don't think it's quite perfect yet. As for URLs vs Hashes, you point URLs to a hash through DNS TXT records.