I really enjoy the item sequence. I've been using it when my team doesn't really have an AP champion. Once I get the deathcap the game just changes completely. Even if it's a slow start, most of the enemy team hasn't built up much magic resist because I haven't been that effective. On those games, the endgame is so much fun because you just eat up everyone.

I've had some difficulty getting the red buff on the first pass though, especially if I don't get a leash on blue buff. Also, definitely make your appearance known on mid lane. Even if you don't actually hit them, you can still scare people, or even make the other lanes back off a bit when they see you walk out of one side.

This guide is on AP jungle fizz and how to do it. After all you play the game for fun and i personally think AP fizz is a lot more fun than ad and i'm sure there are many people that agree with me and this guide is aimed towards those people.And if you read the guide it states in pros/cons that he doesn't have sustain and that's why we go down the defense tree in masteries

A good guide overall, +1.

However mabey add some codeing and color? Check out johijohis "guide to makeing a guide" for more info on how to do this. Your build is really nice, and i like how you talk about how to gank. Mabey elaborate on what his skills do and how to use them to their utmost eficencey?

Anyways gj and gl to you

A good guide, you have the components into making a good guide.
Your explanations make sense, but it is too boring. All you have are texts, some colored, some not. You should add some BB coding into this, to have a guide with more excitement! It seems "That Trev Person" already gave you the link for the guide so make sure to read that out! It's awesome!
Also you should try adding an "Alternative items" section. For example if the enemy are more focused on AD champs, what should you get? Thornmail? or what?
If they are more focused on AP champs, what should you get? Maw of malmorcius? or what?
Maw is more AD based, but maybe some AD could make it handy for fizz?
Anyways these are just examples, the alternative items are for you to make. It's your guide :) But try adding some alternative items, it would help the reader a lot. Coz you're definetly not gonna get the same items every single game.. right?

I think as an AP jungler he doesn't really have a lot of sustain. I've seen Ad jungle Fizz work better.

You have the makings of a good guide in the works here. I agree with your items for the most part as well as your skill sequence. The one thing is, your use of formatting to enhance the guide is lacking. Try typing in icon=fizz with brackets [] around it and see what happens. JhoiJhoi has an entire guide just to instruct people on all the nuances of creating a guide. I highly suggest you check it out, your guide will improve tenfold.

http://www.mobafire.com/league-of-legends/build/making-a-guide-101506

Additionally, in terms of what you have, I'd elaborate more on the masteries section, assume your reader is a new player to LoL who doesn't understand the more intricate parts of the game. I'd also include a counter-jungling section, how to deal with them and how to do it. Lastly, it might be a good idea to run your text through a spell check, because there are a couple errors in there. ;)

Good Luck!