Ok, here are some great links

These normally would be in a sidebar and when your students are viewing or looking at the blog they can click on them and explore.
I think you should look at these. I have been using some of them for many years now and they are very interesting. A few of them would be well suited to many of you as they have various gradations of levels.

General

manythings.

ericbray.com

eslcafe.com/

bbc.co.uk/worldservice/learningenglish/communicate/

Listening Practice:

esl-lab

http://www.elllo.org/index.htm

englishlistening.

voanews.com

http://www.npr.org/

Lessons

eslgo.com/classes.

Online Quizzes

a4esl.org/

better-english.com/exerciselist.html

pacificnet.net/~sperling/quiz/

vlc.polyu.edu.hk/

www.mac.com/account_error.html

eslnotes.com/synopses.html

Weblogs

www.eslgo.net/

Reading

lclark.edu/~krauss/toppicks/reading.html

icdlbooks.org/

topics-mag.com/


Keypals
penpalnet.com/

epals.com/


Tools

google.com.hk/

kartoo.com/

babelfish.altavista.com/

http://www.onelook.com/ -an english dictionary

Well, these are some of the planned links I would like to get going on this blog, later, they will be in a sidebar for easy access.