PBS has launched a new website that really incorporates two sites, one for very early literacy skills and one with reading skills for the primary students. It looks very well done and even has a tracking system so that teachers can keep track of student progress and students can be awarded for their efforts. The two sites are PBS Kids Island and Raising Readers and can both be found at http://pbskids.org/read/ There are video tutorials.
On the Raising Readers site, I noticed that The Electric Company (feeling old?) is going to be launched on site during the winter of 2009.
I am sure that those with emerging readers in their classes will find lots of activities to use.