It's where members help each other out by exchanging an equal ammount of time in their own field/job/skill.e.g.
Bloke 1 is a joiner to trade and needs a head gasket
(or something) replaced on his car but can't do it himself. He puts a posting up asking for assistance, and his location.Bloke 2
(who's a mechanic) reads the posting and is looking for a joiner to do some work round the house.They then do an equal amount of LABOUR for each other
(each party is responsible for their own cost of materials/bits). You could put in the Subject line something like 'Bricklayer looking for solicitor in Oxford'. It doesn't matter how much you normaly get paid to do your work, you'd be exchanging time on an hour-for-hour basis here.Just a thought.
i scratch your back you scratch mine 
