What’s the best place to buy established websites?
Of course you can always try to find a gem on Flippa by digging through all the crap sites.
But if you’re in the market for a serious online business you might wanna start your journey at Quiet Light which is run by an experienced US web broker and features mostly higher tier sites.
Other places to check are Buy Sell Website, Businesses for sale, Website Properties, Websites For Sale Ads and some more. See the full list.