Not sure how long this is going to last, but it looks like you can now watch the entire run of Genndy Tartakovsky’s Clone Wars on Youtube. It’s unofficial, but with the DVDs out of print this may be your best chance to catch up.
The series of shorts, produced by Cartoon Network Studios, originally aired in three chunks between the releases of Attack of the Clones and Revenge of the Sith from 2003-2005. They have received little attention from Lucasfilm since the more traditional The Clone Wars started in 2008.
Let’s hope they make the cut for the Digital Library