BTDigg is a BitTorrent DHT search engine, which basically means it doesn’t host files itself but helps you find torrent metadata from the distributed BitTorrent network. Instead of relying on traditional torrent sites, it scans the DHT (Distributed Hash Table) to index magnet links shared by users, so you can search and download content using a torrent client. I’ve used it a few times when regular torrent sites were down. It’s pretty minimal, but useful when you just need a working magnet link.