By V2 I hope to implement the ability to choose a style, or type, for your server and to have the client be able to sort the server's list by the types.
This is what it would look like:

The change in the GUI is already going to be in the next update, but I'll probably add an option to disable it. (would require restarting for it to take effect)
Possible place types include:
TDM - Team Death Match
FFA - Free For All
FRP - Family Role Play (If I could have it forget the alphabet and move it to the bottom I would)
JRP - Jail Role Play
CRP - City Role Play
OBY - Obstacle Coarse / Challenge map
FRB - Free Build
GRP - Other kinds of roleplay servers like the mining mod and such.
UND - Undecided.