I assume most of you know it already. I didn't so I'd like to share it with you, just for the benefits of rookies like me. and maybe to learn from you something new as well.
While playing with GooReader, I taped the sign of Wifi at the right bottom part of the application, and got instructions as what HTTP:/IP_ADRESS:PORT to put on my Lap top that was working out of the same Wifi. As soon as I did that I couls transfer pictures and other files between my 2 devices. No need for the iTune.