whats the best for battery life?

i have a g4 ibook, and am new to it. How should i do power stuff. Should you keep it plugged in all the time? let it run out all the time. Right now I have it plugged in while I am using it, and when it is off I take it out. What is the best way to get maximum battery life?

this has been descussed many times in these forums. some will say one way and others the oppossite. its basically personal prefference.

Here is Apple's suggestion
"For proper maintenance of a lithium-based battery, it’s important to keep the electrons in it moving occasionally. Apple does not recommend leaving your portable plugged in all the time. An ideal use would be a commuter who uses her iBook on the train, then plugs it in at the office to charge. This keeps the battery juices flowing. If on the other hand, you use a desktop computer at work, and save a notebook for infrequent travel, Apple recommends charging and discharging its battery at least once per month."