Sorry about the lack of updates on this page for a while, I have been pretty much exclusively working on the facebook version for most of the last year:

http://apps.facebook.com/massivemap

Ok I know not everyone uses facebook and I am working on a new main page/non-facebook version, which I hope will be finished soon

If you want to try the old version of massivemap, you can still find it here:

http://www.massivemap.com/old

But it really is pretty out of date now