Well.. here's to some of you that requested some anatomy tips from me. I still have yet to complete a step by step tutorial on drawing REALISTIC, humanoid figure, but I did this character for my Character Design class and decided to post it here to show people some tips on drawing cartoons.
Unfortunately it's not all that informative as I'd like it to be, but as I said, it was unintentional to become tutorial-ish and needs some more steps. But hopefully some people can learn from this, so I'll give it a go!
This is supposed to be a cartoony, chibi kinda ish, version of myself. The only thing that stands true to this is the way I dress.. but anywho... onto the tutorial.

Step One: This is the rough version of the character. Note the basic shapes. REALLY basic shapes. I like to work mostly with circles, but if you find anything that works well with you then feel free to do it that way instead. You might even want to do some gesture drawings or pose ideas before you even go onto this step too.
I always start with a line of action (the line going down the centre and is usually all one line except for this case). This help establish simple movement and fluidity of the object that you are drawing.
I started with a simple oval for the head and plotted out some basic face coordinates. (I accidentaly have this step's head tilted down a bit more then the other ones... forgive me please!)
Next I like to do the chest. NOTE that I put a curved upside down 'U' a little more then halfway down the chest. I like to use this line to point out where the RIBCAGE ends, and helps me when drawing an outline for the torso later on. ALSO note the 'U' shape right below the neck. This a simple placement for the COLLAR BONE and I find that it helps me when positioning the neck to the torso, AS WELL AS proper shoulder connection for the arms at the ends.
I did the hips next. I used a circle this time, and sometimes I'll use a triangle, but both serve their purpose. NOTE that I drew a hip line just like I did with the collar bone. This helps me in placing the theighs (and later on the rest of the legs) to the hips properly.
The arms and legs are pretty much self explanatory. Note that I plotted out the joints especially. This helps me to see where they're moving so they don't go outta place.
This 1st step is the most important step of all! This is because it plots out PROPORTIONS as well as the POSE, and lastly the body's SIZE RELATION to other body parts. Basically if you screw up a bit on this step, the end result will reflect that mistake because of improper BASIC FIGURE.

Step Two: Not much to say about this one. Just filling in some larger details and giving the wireframe man in the 1st step some volume and shape around those bones. NOTE that I tightened the lines of some of the things such as the face, and kept clothing folds at a MINIMUM.
I decided to completely draw his hair in this step, but I normally would sketch out the hair in this step instead of completing it. So I would suggest a simple hairstyle for this and save the good linework for the last step instead.
I also didn't draw in the hands all the way yet, and instead only marked them with ovals. This is a good step to learn, because hands can be difficult to draw. So if you screw up on something later on that effects the hands, you can easily erase them without destroying a good hand that you did before.

Final Step: The finished product. Linework is tightened all around and cleaned up.
NOTE that I saved most of the details until VERY LAST. You can always add in as many details you want in this last step, as long as the first two steps work out nicely then you're good to go. Too many beginner artists who draw will work with ALL THE DETAILS from the start, and erase all that work if they screw up later on. With this technique you don't need to erase much if you screw up a detail because if you followed the steps properly, your body PROPORTIONS and SIZE RELATION should be accurate and you won't have to change much of the body.
I added in the FACE details LAST in this one. This is because if you get the head shape the way you want it in the beginning, you can easily add in details now. Most of the time I'll do a rough of the face in the 2nd step, just to get the details correct, because most of the time the face outline is odd in some places when details are added on and chances are that I'll have to change the basic face shape then. It's up to you really.
HANDS are completed! No erasing these babies for me because the position and size were accurate the first few steps.
More details in the clothing folds were added.
Fox Necklace added in. Note the small details in it though... which is why you'll wanna save it for last. Get a basic idea of where it will be placed in the 2nd step and you can then add it in later.
Details in clothing texture added in.. don't you just love that undershirt I wear?
Details in shoe's added in.

ALSO NOTE The 'Head Height' bar on the far left. This shows how many heads this dude is in relation to the rest of his body. Because this is cartoony you can use however many heads tall or small, short or fat that you'll wanna use. It's when drawing realistic humans when you've gotta be picky and careful.

And there ya go folks! My 1st tutorial in drawing an effective cartoon character! Don't I look cute?? Please keep in mind that this is MY style of how I draw most of my stuff, so you don't have to go exactly like this. Feel free to develop your own technique that works best for you!
I'll have some more tutorials up soon, such as drawing realistic humans, and maybe some more... but for now use this as a guideline.

Image © Davecko (me)