We have added some premium membership features to the Clash of Clans Tracker. We wanted to provide some additional functionality to the site to provide those who have supported us with donations with some bonus material. The basic feature set that exists today will remain free.
1. Additional Villages
With premium membership, you can add additional villages to your login account. There is a drop down box in the upper right corner where you can switch between your villages. This feature is really just a convenience for premium members. Free members can get the same functionality by registering a new account and logging out and in with the new account.
2. Work In Progress Tab
The Upgrades Tab shows you a list of all your builders and laboratory in one place so you can quickly see when the next upgrade will be finished. Very useful for planning your gold and elixir requirements in the near future. Comes complete with pretty progress bars.
3. Laboratory and Builder Queue Tabs
The Laboratory and Builder Queue tabs show you a list of all remaining upgrades at your town hall level. These lists are currently just sorted by upgrade time, but, in the near future, you will be able to sort these lists and save your personal order for upgrading your village. The sorting ability currently exists in the page, so give it a try and let me know if you experience any problems. You can click and drag individual items to reorder them. If you are on a computer, Ctrl-Click will select multiple items to drag. The interface should warn you if you have put something in an impossible order (i.e. Hidden Tesla level 3 before Hidden Tesla level 2).