I didn’t have time for new posts as I have been reading like a maniac 
The first one was a robotics wikibook:
http://en.wikibooks.org/wiki/Robotics
It reached so many aspects of robotics, but didn’t go into detail with many of them; I appreciate that because it determined me to research the topics of interest- like shape memory alloys and piezoelectric motors, very useful actuators for tiny robots.
I have also appreciated that it insisted on the practical skills in robotics – unlike many other books I’ve read- and it included many different approaches for actuators and control devices, unlike the standard book that deals only with electric motors and microcontrollers. It didn’t include a tutorial on PCB building which I find would have been very useful for begineers.
The second one is another wikibook:
which I didn’t finish yet but it won’t last long as I am nuts over cellular network robots. They seem like the most adaptable robots I have seen. They can adopt so many different types of locomotion and maybe different types of grippers too.
[...] I don’t know yet how will this project end; it is something new for me. I will change the design and the prototype many times till I’ll get something better each time. If you are curious how come I got interested in such kind of project, this was the start. [...]