www.TED.com - we can help you use the subtitles and transcripts.
http://literacynet.org/cnnsf/archives.html
http://iteslj.org/questions/
For grammar, we recommend books by Murphy (English Grammar in use) and this University of Victoria web site:
http://web2.uvcs.uvic.ca/courses/elc/studyzone/Also: http://cecnbouvier.educanet2.ch/anglaisecd/diplomes/lutz.html
http://www.englishpage.com/verbpage/verbtenseintro.html
http://www.englishgrammarsecrets.com/index.html
