is this camera good for skateboarding?

Sony DSLR's are usually good for more action shots. The slta58k shoots at 8 frames per second ensuring you that every second will be captured, the flip out screen adds another huge advantage as it allows you to shoot from extremely low are high angles, angles are important in sports photography.

However sony is not the top end "video" camera, you could find a little defects here and there, but that's my opinion. You should go to a store and give it a trial run and get the feel of the body and maybe record a video and take some high burst photos. If its not comfortable then you might find it challenging to use at first.

Yes, Sony A58 will be good for action photos and movies.. you will find the LCD on the back that flips to be very useful. But, as another person says, it is not robust enough to stand knocks if you intend to shoot while riding the board. A GoPro or other ruggedized camera would be better.

Yes thats a good one but if you want to take really good ones and to have the option to record you in slow motion or to attach a camera to your head buy a gopro