Excellent codeigniter tutorials for biginners and experienced developers

I found some very nice and useful tutorial for developing a good codeigniter project.

It is all video tutorial and will get sample code. I think everybody must watch it before making a project in codeigniter. It will of course help you.

http://net.tutsplus.com/tutorials/php/codeigniter-from-scratch-displaying-sorting-tabular-data/

http://net.tutsplus.com/tutorials/php/codeigniter-from-scratch-search-results-without-query-strings-2/

http://net.tutsplus.com/articles/news/codeigniter-from-scratch-day-5-crud/