I want to know the following things about adsense:

(1) What factors choose what I will get for a certain click?
(2) What are page impressions supposed to tell me?
(3) What are the Page eCPM and CTR? Like, what do they tell me?
(4) If I use adwords, will I get paid more per click in adsense?


Thanks!

1. What adwords advertisers are bidding on the keywords your contexual ads are relevant to.

2. How many web page views your website\ad units have gotten for that specific period.

3. CTR is click-through-ratio, it's the percentage of how many clicks vs impressions your site is getting. eCPM is your estimated earnings per 1,000 impressions, this is an average and might not reflect how much you actually make.

4. No.

Thanks!