Turnitin - http://www.turnitin.com
Turnitin is the global leader in evaluating and improving student writing. The company’s cloud-based service for originality checking, online grading and peer review saves instructors time and provides rich feedback to students. One of the most widely distributed educational applications in the world, Turnitin is used by more than 10,000 institutions in 126 countries to manage the submission, tracking and evaluation of student papers online.
To learn more about what's wrong with Wikipedia, evaluating the sources used by students, and the Source Educational Evaluation Rubric (SEER), take a look at this Turnitin Whitepaper.
Survey Monkey - http://www.surveymonkey.com
SurveyMonkey is the world's leading provider of web-based survey solutions. Millions of people use SurveyMonkey for everything from customer satisfaction and employee performance reviews, to course evaluations and research of all types.
Scrible - http://www.scrible.com
With Scrible you can bookmark pages and highlight and tag specific information within a webpage for future viewing. YOu can tag your information for later viewing. You ca add notes to highlighted webpages so your thoughts and ideas will not be forgotten. It is very easy to drag and drop the toolbar into your web browser.