My students are blogging this summer too. I do weekly journals during the school year, but because the summer session is so squeezed in terms of time, I decided to do a blog instead. It also saves paper, and that's a good thing as well. They've done some good stuff here if you want to take a look. Some lazy stuff too, but mostly good :)
And I encourage you to check out Poets for Living Waters, an online collection of poetry motivated by the Gulf oil spill. There is some lovely stuff there, for example these two poems by Sarah Green. I just sent them two poems as well, and would encourage my poet friends to do the same.