We have a small yet useful update in WoWProgress Realm List and Guild Rosters:
Realms are now sortable by any column:
- Rank
- Realm name
- Population Total
- Population Horde
- Population Alliance

Population now calculated differently. Before it was based on total amount of characters that did Tier14 Normal or above.
Now it's based on amount of unique players that killed something in Tier 15 Normal.

In Guild Rosters now you can see amount of unique players.
Example: Level 90 Members: 215, Unique Players: 77