As far as I understand Monero uses a number of seed nodes to bootstrap new nodes entering the network. And I gather from this question that the address of those nodes are discovered by resolving some fixed DNS names. However, I was wondering how the actual nodes are chosen? Is it just a list of fixed addresses (and if so, who picked them)?
DNS for the seed node lists are managed by the core team. Last I was aware, at minimum, fluffypony has access. The nodes themselves are contributed/managed by various individuals, organizations, developers/core-team members that have nodes with good uptime, bandwidth and fixed IP addresses.