You pretty much have to be online to access Web 2.0. For me, this has become the single biggest hassle of traveling! After my recent trip (to Australia, blogged here), I have sworn to only use hotels that can provide high speed Internet access, preferably wireless.
And of course, wouldn't it be great if it were free, as well?
Well, WifiFreeSpot.com lists airports, hotels, campgroungs, vacation rentals, coffee shops, bookstores, and other places that offer free wifi access. This site is likely to become a must-use resource for my future travel planning. It is part of JiWire.com, but I found it much easier to use than JiWire's hotspot finder, which focuses more on paid hotspots. (JiWire does have an interesting wifi newsletter that I susbcribe to.)
BTW - You should really install a personal firewall when using public wireless access points, and even hotel ethernet wired access points. I use the free Comodo Personal Firewall, which is discussed on the Leading Edge Technology podcast. I only turn it on when I am traveling.