Very nice, a few little things to point out:
It's hard to figure out what category the tutorials are in, only after looking for a bit I realized they are categorized in TINY words on the post.
The tutorial categories are on the right, too far down, if you go to any tutorial website, i can guarantee the tutorial categories are in your face and are clearly visible without scrolling etc.
And whats with the google ads being waaaaaaay down at the bottom? No ones going to click them man, if you plan on making some extra money with Google you have to use it to your advantage, high and visible but not forced on you, they need to be there, not IN YOUR FACE!!!

- But being way down at the bottom like that, you really ain't gonna get many/any clicks at all.
I also see the google ad under your tutorials, they are at a nice place, but they blend in too much in my opinion, thats a prime spot, play with the colours, see which ad stands out more

(I see you got a nice open space at the top on the banner

)
Also the navigation at the top has nothing to it... there is no change when i hover etc. - little things like that give a nice touch, not VITAL, but it's nice to have there

I think thats it really, just a few pointers that can really boost your websites look without going crazy, a few simple changes are always the vital ones
I don't want to sound like im telling you what to do, but in my experience, these things help!
Good luck on your web-adventure dude!