You know those annoying adverts that come through on web messenger and hotmail, well if you have the adblock extension on firefox (or even something cool on your router) then adding “rad.msn” will tend to block a lot of the annoying adverts!
Not sure if it will block useful services from MS but it seems to work pretty well on at least the web messenger (I haven’t tried it on a router for if it blocks annoying adverts in the real MSN app)…