American Speech-Language-Hearing Association http://www.asha.org
Speech Delay - information on speech and language norms, ages and stage of child development http://www.speechdelay.com
Sunshine On-line - great vocabulary building activities/games http://www.sunshine.co.nz/nz/27/action/k_action.html
Literacy Center - good cognitive-language activities http://www.literacycenter.net/lessonview_en.htm
Good website for specific articulation and language activities http://www.quia.com/pages/havemorefun.html
Good printable activities for early/primary grades http://www.preschoolprintables.com/schart/schart.shtml