http://www.cleverscampcamp.com/camping-italy-campsites/
I need cheap campsites, in italy!?
I will be here for another 20 days, what would be the cheapest way of camping? i have my own tent, are there any reallly cheap campsites?? thanks:)
Hi! Here there is a like: I hope it will be useful
http://www.camp4less.co.uk/campsites/countrymap.cfm?country=italy
However I suggest not going for free camping: it could be dangerous. If you want something cheap try in Sicily, in Calabria, Puglia, Basilicata; avoid Tuscany and Sardinia (especially some parts).
Nice Holiday! 
VENICE CAMPING FUSINA