*sigh* it is true that when 1 service like MU goes down, a few others remain and even some more will pop up. The problem is, are you willing to upload gigs of data to any of these services with the possibility that at any given moment it all goes down the drain again? Ask renegade, animeraider, guill, or any of the other frequent uploaders their opinion about it and you will see. I think right now it's a good time to ditch all the free file hosts to store the raws. When you give your data to someone else to hold, things like this can happen at any time.
Perhaps they can still be used to host the most recent chapters, but when it comes to use them as an archive for hundreds of series, I believe we need to look at other alternatives.