Similar to 男の子牧場

.mr

.ms

.mt

.mu

MIME

Mumble (software)

.mv

.mw

.mx

.mz

.na

.nagoya

.nc

.ne

Netvibes

.nf

.ng

.ni

.nl

.nr

.nu

One Web Day

OpenBSD Journal

OpenSearch (specification)

OpenWeatherMap

Peer-to-peer web hosting

.pa