In order to maximize the money you earn
with AdSense, you will need to experiment
with your ad placement and formats. Experimentation is
the only way to learn which advert strategies work best
with your website. Google AdSense channels enable you
to track the performance of your different adverts so
that you can see which ones are performing the best.
An AdSense channel is a way of identifying an individual
ad placement or a group of ads
Using channels requires a little bit of planning but
it's essential and well worth it if you want to optimize
your generated income. Check out the Google AdSense
help pages for instructions on how to use channels.