Atlas could show "fraction of Tor network by weight" graphs over time?
Atlas currently has "bandwidth carried by the relay" over time graphs, which are great.
How about a "fraction of the weight for that relay compared to total weights" over time graph?
I expect most relays will be ~0%, but some of the big ones will be 1% or 3% or something. And whether they go from 1% to 3% or back could help to debug issues like the one Andy asks about in http://archives.seul.org/tor/relays/May-2012/msg00001.html
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information