Spunchops has been kind enough to write a tutorial on how to add google analytics to your blog page. it lets you track various things about your site including page views, traffic information and referrals(google ads).
it's basically used to spy on who clicks your ads, how long they stay on your page(spammers?) and where in the world they're from.
while his tutorial did help me i won't paste the whole thing here but clicking THIS will take you directly to it.
i ran into some problems and managed to find more info about how to set it up properly here.
coming up next part 3 in the strange coincidences series. =D