For mobile internet, this was the most recent thread:
http://www.italymag.co.uk/forums/cos...broadband.html, See also the 'Sticky' on GPRS and EDGE.
As for shops, we don't do much shopping in your area, so might'nt be able to help too much. About the only place we very occasionally go to is the retail park behind Taggia-Arma train station - which has what may be the biggest electrical equipment supplier and the biggest DIY warehouse for many many miles. But I expect you've already discovered that!