Disclaimer: Warning, these links may direct you to sites away from A3. Below are some common links used by the A3 community:
Experience Calculator - Use this Experience Calculator to calculate the amount of experience needed to obtain a level.
Hex Colors - This is where you can look up all of your favorite hex colors to use on A3.
Subscription Time - Having trouble activating your subscription time? Click here to sort it out.
Marketplace Tool - A handy tool that can be used to tell you how much profit you are making. Simply copy the marketplace listings of the item you are interested in reselling, input your reselling price, and let it do the work.
The A5 - An "A3 Assistant" that keeps histories of other A3 users, along with other useful goodies.
Game Payment Policy and FAQ.- A troubleshooter for any problems you might have paying with Paypal, CC, etc.