From site:  Literactive is the leading provider of reading material for pre-school, kindergarten and grade 1 students available online. The program is comprised of carefully levelled guided readers, comprehensive phonic activities and a wealth of supplemental reading material which gradually develop a child's reading skills in a sequential and enjoyable manner. Developed and approved by teachers and parents across the United States, Literactive is the acknowledged leader in early learning online. All the material is available for free from this site but you need to register.

Literactive’s phonics reading program – The Road to Reading – is now available online. The program takes the early learner on an interactive journey of exploration and learning. Starting with initial nursery rhymes, it moves through pre-reading activities, alphabet awareness, letter sounds, short vowels, CVC word blending, initial blends, long vowels and all the phonic activities critical for developing early reading skills. Scientifcially researched and teacher approved, The Road to Reading is the most comprehensive reading program available online...

Over one hundred learning activities for individual or whole class use are available for download. Each activity focuses on a particular reading skill and develops the early learner's ability to decode text into its constituent parts. All the activities are simple to navigate and fun to play. For individual use or in small class groups around the computer.