I was used to use the Google API to search the web (and use the Internet as a corpus). Google closed the API and I switched to Yahoo that closed the API (is selling it), and I was trying Bing (that limits the query of 5000 per MONTH, and that is a confusion to configure -- I couldn't do it yet).
Is there any other web search engine with a free API to query programatically the web?
Kindest regards, alberto