Data on people who visited X also visited Y

Common niches between visitors

[fitzer]

I'm sending traffic to an affiliate offer that converts very well from ads on sites in a certain niche.

What I want to know is: what other niche websites would attract the same type of visitors?

Are there tools/data out there that provide the data that says "people that visit sites about apples also visit sites about oranges"?

Sites like amazon have this sort of data about their books (people who liked this book also liked...). IMDB has this data about movies too. I'm looking for this data about websites.

I'm looking for real statistics and real data here not just intuition.

Thx!

[WannaKnowSEO]

Believe it or not, google serves that information up to you. Sign into google and check out the center column.

[trends.google.com...]

[fitzer]

Thanks WannaKnowSEO. GoogleTrends crossed my mind but for whatever reason I never dug into it. Great find.

Found even better data at QuantCast:
http://www.quantcast.com/wikipedia.org [quantcast.com]

See right column, near the bottom: "Audience Also Visits".

Thanks again!