1) Links to Many English Learning Sites! http://towerofenglish.com/

2) Various Interesting Activities http://www.lclark.edu/~krauss/toppicks/toppicks.html

3) On-line Encyclopedia http://www.encarta.msn.com/

4) On-line Dictionary http://www.m-w.com/netdict.htm

5) http://www.grammarly.com/handbook/

6) http://www.bbc.co.uk/learningenglish