what’s the harm of doing PCB(printed circuit board) for a long-time?

What’s the relationship between PCB(printed circuit board) and IC?

http://www.pcbpartner.com

Would the finished circuit baord work the same? I want to make a single sided printed circuit board, but all I have is a double sided. Would it be okay to use to double sided and still get a working board?
Thanks In Advance

is a printed circuit board the same as electronic paper? I am trying to make a prototype of an electronic paper, and when i typed in electronic paper prototype, it came up with a site on how to make a printed circuit board with photopaper, water, and an iron.

we have to create a booklet of 5 to 9 steps of instructions of how to make a printed circuit board, Do you know the first step? I think its about that printing or copying stuff, well i dont know.. I didnt really concentrate when we are watching our teacher doing it…

do you think it would be possible to make an ink stamp by printing an image on the computer and transferring it to a printed circuit board and then somehow coat it in rubber or something?

I have a schematic diagram that I would like convert to a printed circuit board diagram so I can make it. Is there some software or a tutorial that someone knows of so I can learn how to do this? Or if someone was to do it for me what would be the expected cost? This is the diagram I want converted http://www.headwize.com/images/rychke2.gif

Also what is the white board in this picture called so that I can go and buy one? – note thta it is not my website http://members.home.nl/b.vandam/lonely/i2ceeprom2.jpg

What we need to do with the design of the printed circuit board track in order to reduce interference.

I need to protect a small printed circuit board used in elctrical devise that is used in rain. Water proofing the box has failed. i have heard that some sort of wax/sealent is applied to cover it but dont know what it is and where to find it. Please help

What are the business aspects of levels of Printed Circuit board Manufacturing ?
Can you give a simple steps that's involved because I am trying to see the Big picture and I can't seem to get it..