EU.ORG is one of free domain pioneers. Present since 1995, their free sub domain is intended for everyone, who cannot buy their own domain. Various county-code and functional sub domains are available. EU.ORG domain registration procedure seems a little challenging at first, but is actually really simple and fully automated. First you register an Administrative handle (yourself), and then you attach a domain to your handle via online form. You can also set NS and MX DNS records.