Been thinking about this for a while, but after some chatting with BP and watching Ultimate Survival Alaska, I'm going to look into how to make a net. So, I have come up with a pretty useful link.
http://www.troop54.com/knots/Netting.htm
I'll be posting the results of the lesson soon. Practice practice practice. 1 meter of paracord gives 7 strands, each a meter long, plus the outer thread, totals 8 bits of cord to practice with.
The idea isn't to get the perfect net first time round. It's to learn the technique I need to be able to make the net, anywhere, anytime, and in any conditions. It's the skill of making a net that's more important than owning a net, in my opinion.