Many services seem to present a layer of API I’m not interested in (keyword search/trends/related tweets/whatever). I’m mainly looking for services that provide the greatest volume of aggregated web content as a feed, upon which I can do whatever analytics I need.
APIFIER: Hosted web crawler for developers
Crawl and extract data from websites that employ AJAX, complex pagination or infinite scroll using the same tools you already use for your front-end development.