He suggests that you build an internal tracking system to compliment something like Google Analytics.
Also if there's one thing you learn first in Google analytics, it's "Custom Segments." Build a segment for your paid users or return users vs. new users. USA vs. World. 3:00 on site vs. <1 minute on site. etc. Comparing differences between these groups is invaluable.
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web analytics 2.0 is amazing.
Also watch this (GREAT) talk on the metrics you should be tracking off the bat: http://carsonified.com/blog/business/mike-mcderment-of-fresh...
He suggests that you build an internal tracking system to compliment something like Google Analytics.
Also if there's one thing you learn first in Google analytics, it's "Custom Segments." Build a segment for your paid users or return users vs. new users. USA vs. World. 3:00 on site vs. <1 minute on site. etc. Comparing differences between these groups is invaluable.