incrediBILL - 10:23 pm on Nov 5, 2012 (gmt 0)
According to their site:
AlchemyAPI is a cloud-based text mining platform providing semantic tagging to over 24,000 developers in six continents, processing 3+ billion API calls per month. AlchemyAPI provides the most comprehensive set of natural language processing capabilities of any text mining platform, including: named entity extraction, sentiment analysis, concept tagging, author extraction, relations extraction, web page cleaning, language detection, keyword extraction, quotations extraction, intent mining, and topic categorization..
And of course "cloud-based text mining platform" is marketing speak for "massively big scraping operation" :)
Did it check robots.txt?