Akimoto has got one, pretty Ok but the algs could be shorter. Kirjava has got his K4. (Use Google to find the pages).
I got a method much like Kirjavas but better optimised I think and also algs for all LL-situations, he use mostly commutators. Bad thing is I have no web page describing it.
But I have thinking of making some example solves where I start from a scramble and write out the moves for each step and also comments what I do. (It's needed, F3L is intuitive and has got some rather special passages hard to understand from plain text).
Maybe I have the energy to make at least one example later today or tomorrow, if so I will post it in this thread, wait for that =)
For LL both me and Kirjava uses CLL and edge cycles. I have divided all LL edges into three ELL steps and got short algs for all of them, browse the Y-group and look for a thread from this summer named "ELL for 4x4x4" or something like that and you will find all my ELL's listed there.