Thanks for the suggestions. His therapists use HWOT, so I use it too to remain consistent. His small motor skills are limited so he doesn't use the computer and can't write yet. I have tried starfall and it didn't work for him. Tablets work best, he can still for about 3 minutes, then needs about an half hour break. If he seizes, he sleeps for about an hour, then we must repeat whatever we worked on previously.
The reading sites look interesting. Are they teaching whole language reading? Do they work for children who don't recognize the alphabet? Or do they help with that too?