Which niche websites have produced the best adsense earnings for you?

Like which niche has given more pay per click for you?

For me it was finance and travel websites.

the pages for fun with jokes, fun pics, etc..

i have seen and much higher stats with law related words. higher CTR and even better revenue. but im not in that niche as i prefer something else.

i have a friend that gets more out of that. but its not that easy. they have outsourced seo's to maintain such niches, probably working full time to give out the right content. technically it's a little harder to serve for it.

for now, im up to open up other niches and try the waters, what else would you recommend?

I think those like "adsense" and "real estate" can make a ton of money. I just wish I knew more about the subjects.

adsense is an ok performer, not my best. some programming languages pay well

Finance is good...

Finance pays really well, but that niche is full of spammy websites and they clog up google.
I have only had one good finance site.

real state have give me some bucks

For now, i'm trying cosmetic products. Worth the effort too.