Scrapy - Scrapy | A Fast and Powerful Scraping and Web Crawling Framework
Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.
StormCrawler - StormCrawler is an open source SDK for building distributed web crawlers with Apache Storm.
Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!
Apache Nutch - Apache Nutch is a highly extensible and scalable open source web crawler software project.
Google Forms - Simple web forms from Google.