Personal Learning Environment

Google reader seems really 'thick'. I am exploring each item one by one-there seems to be a lot of information here and I have only added a few of my personal settings. I want to be able to personalize it a bit more as I am grasping a better understanding of all of the features. I am spending a lot of time on the computer and I am noticing neck and eye strain and pain. I have to decide what is important to study and what needs to be ignored-though feel like I might be 'missing' something!