If you want Italian shops try google.it instead of google.com . I'm sure you'll find a few places but online mens shops are likely going to be aimed more at the young mens market. I can't imagine too many of the better places putting a great deal of effort into online shops.
What kind of shops are You interested in? Like mentioned above most Europeans - myself included - shop online at websites located in the UK. Nevertheless there are some nice italian stores out there which offer great products. E.g. I got two ties at Sartoria Napoletana which are of great quality - especially when considering the price point.
Thanks for the responses--I was mostly interested in Italian goods (ties)--and its interesting to learn that Anglos have most of the market in online men's retail (and that Europeans otherwise shop at local haberdashers, wish that were still true in the U.S.).