This web resource list contains some resource links that may prove useful in working with ESL students. This resource list was found in the book, "Teaching with the Internet K-12: New Literacies for New Times" 4th edition textbook by Donald J. Leu, Deborah Diadium Leu and Julie Coiro. If you need more specifics, please consult the textbook.
Dave Sperling's ESL Cafe This is recommended as a good site for teachers and older students. It is ranked among the most popular ESL sites, however, it does contain commercial links. It does contain bulletin boards and chat as well as other activities and resources.