I love the hip-hop style songs for letter/sound relationships and counting practice on havefunteaching.com. Just click on the video drop down tab and select your preference. Although you can view videos online, I highly recommend purchasing the DVDs. This way you can avoid buffering and/or popup ads. Your kiddos are sure to love this lively practice!
Interactive: Letter/Sound Practice
Starfall.com is another favorite. Kid favorite on the SMART Board or as a learning station.
ABC: Ideas
A Wonderful blog with a great idea for bringing letters to life for kids. Very cute project ideas for each letter of the alphabet...all in pictures! Click here.