Kompyte - Track & analyze competitors in real time.
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.
BuiltWith - Find out the technology behind websites
Google Forms - Simple web forms from Google.
Skuuudle - Discover, match and monitor your eCommerce competitors.
Zoho Survey - Capture feedback and turn it into actionable insight.