One website that has recently expanded and made its website videos free via streaming is www.downloadkarate.com.
the fullc ourses are now available at no charge (you used to have to pay). 2 other good sites to add to the list of bunkai sites include (but are not free): www.martialsource.com www.koryu-uchinadi.com/
All of these are good addiotns to the above list.
youtube videos are sometime sgreat but are often too short and unprofessionally filmed in my opinion.
Hope this helps.
edited to fix link