Travel has been made much easier with the Internet. We've been using it to plan trips for the past few years. My husband and I go to various web sites to check flight prices and schedules--Orbitz, Travelocity, but also going on to the specific airline--Sun Country etc. It is also great for finding hotels and restaurants. The Frommer's and Fodor's sites can also give information about sights to see at that location.
Travel 2.0 has the potential of being even more helpful--as it involves more interactive and detailed information. I checked out some of the travel blogs and there was interesting overall travel information--lots of personal descriptions and pictures of trips. I checked out a gal's site who had traveled to Columbia, South American. There were plenty of good tips for those who wanted to try such an adventure. Another fun site was "The Cranky Flier" who related her nightmarish flight to Paris--complete with sitting on the tarmac for about an hour and a long line for customs and rude Paris officials. My favorite site was"tripadvisor". I've used it before to get information about hotels--often there is good information, but just as often there is a little note that says, "be the first one to write a review". The advisor sites are only as good as the people who use them. I like the idea of making my own trip site--seems like a fun way to share the trip with friends and relatives, like an on-line combination scrapbook and trip description. I tried some of the mashups, but again, not totally complete. I tried to find some green businesses in Winona, MN, where my mother lives, but came up with nothing. I did discover that there are lots of winerys around the Twin Cities area--might be fun to check a few out.
My advice is to check out sites that relate to what you want to see on your travels. My husband was able to find a rare "elegant trogan" by checking out birding sites in Arizona.
Although Travel 2.0 has a great deal of potential, it will take a few years before these sites are fully realized.
I think that these sites can be used like a travel guide would be--to help people find out more about the places they want to visit. Nowdays many people have the Internet at home, so the library may not necessarily be involved.