What web scraping tool is the best to extract data?

What is a good web crawling service for web scraping and web data extraction?

• I am looking to extract some real estate data and some amazon inventory data into CSV files, but I don't know how to do it.

• Answer:

  You could try Grepsr - http://www.grepsr.com/ They are a pretty cool web data extraction service, and have excellent support. I had to extract and scrape some public data from a government website into a CSV to prepare a report and they made everything so easy. You just signup, visually mark the sections and areas you want extracted and they will do the rest for you + they are very reasonable with pricing. Once they write the data extractors for you, you can also schedule how often you would want the data extracted and they deliver the extracted data right to your email of ftp! Hope this helps you out.