Operated by ISI Web of Knowledge, Web of Science is an online periodical index. In spite of its name, Web of Science is multidisciplinary and covers:
In addition to searching for articles on your topic, you can use Web of Science to find cited references, determine impact factor and much more.
Here is a Quick Reference Guide about searching Web of Science http://wokinfo.com/media/mtrp/wok5_wos_qrc_en.pdf
For more help using Web of Science, try out one these resources: