[level]

I looked into this a while back, but bailed on the idea because it violates the TOS of a bunch of APIs. For example, the Google API terms specifically notes that you cannot aggregate their content[1]. There were a number of issues with other API terms as well, such as completely disallowing any caching or storing of data, I can't recall which ones, but if you read the terms, you'll find they're quite restrictive.

Ultimately I decided not to pursue the idea since there's no real opportunity for growth, since all your content comes from your competitors, who can easily shut you down.

[1] https://developers.google.com/maps/terms, section 10.5 (d).

[benkarst]

If you ask me, it's hypocritical coming from a company that scrapes the entire web, runs it through an algorithm (PageRank) and puts the data thats in a form that easier to understand. They make 10s of billions per year scraping other websites. Isn't Google the king of aggregators?

But you can't scrape google when aggregating info? What ever happened to "Don't be evil?"