There is a website called www.wetpaint.com, where you can develop a website based on anything you want. There is an education section, where you can design it for your class. It is totally free! I am going to develop one this next semester. You design it however you want. You can post pictures of your class, post homework, etc.

 

Also, I teach adults, and on the first day of class, I always give them my "business card." I go to www. vistaprint.com, and make these cards where you only have to pay for shipping. I have students email me about homework questions, notify me if they are going to be absent, etc.

 

This is a copy of my card - sorry it did not copy too clearly, but it has my esl email address on it. The students love getting it, and I find for the little cost, it is worth  it.