a small netbook should put out a very very small amount of emf.
no reason at all for you to be so cut off from the net.
led screens are not very active with emf.
the killer, for some people, is wireless. and you don't have to use wireless for internet.
just get cable internet and use an ethernet cable to plug your latptop into the cable modem.
your emf issues should go away
also look into a diy grounding pad/kit. the commercial ones are too expensive. basically you just want to touch a cable that is connected to earth, usually a cold water pipe is sufficient.
or you could even take a wireless netbook outside with you, in summertime, with your body physically touching ground.
if you do have wireless internet turn it off at night time or when not in use.
cellphones should in theory be just as bad for you or worse than internet. no comprendo why you can talk on the phone but not be able to handle internet