www.quizlet.com -- fantastic resource for vocab, grammar, and learning from lists. Kids love to compete against each other while studying.
www.Prezi.com -- the newer, cooler PowerPoint
http://www.englishcompanion.com/ - Jim Burke's web site with loads of cool resources and graphic organizers for ELA teachers
www.surveymonkey.com - A site for surveys and a great way to get feedback from students. I do it regularly -- anonymous.
http://www.englishalanglit-inthinking.co.uk/ - Priceless resource for any IB English Lang & Lit teachers. Some of the site is free, and some with subscription -- worth the subscription fee but a great resource even with the freebies