There are not much sources about beading online, but you could take a look in the crafts section in yuor public library. There are often other books that cover several different beading techniques, e.g. books on bridal decoration. I'm working on a costume book in Dutch that will cover some of the basic texhniques, I hope that this picture can explain some of the techniques commonly used:
I made this image for my book, please do not put it on a site or anywhere else online. okay, I know, I shouldn't put it online if I didn't want it to be out there, but I trust you guys.