Rec.Travel Library http://www.travel-library.com/

The on-line reference for the international budget traveler. Do yourself the favor and check out this site! It's the encyclopedia of travel tips, opinions, travelogues .... and much more.

Lonely Planet http://www.lonelyplanet.com/

A condensed version of the books. There is plenty of good info and a great message board.

BootsnAll http://www.bootsnall.com/

A helpful site for those planning a trip. They keep a list of "insiders" for many areas of the world. The site also offers many stories and travelogues of people currently traveling the world or those that have recently completed a trip.

Hostelling

Hostels.com http://www.hostels.com/

A very informative budget traveler's independent hostel site. There are many links to hostels, stories and general travel tips.

Backpacking Europe on a Budget http://www.backpackeurope.com/

Helpful for those looking for independent hostels in Europe.

Airfare

Air Brokers http://www.airbrokers.com/

A consolidator who specializes in "around-the-world" tickets. Ask for Sharon.

AirTreks.com

Another consolidator. Their prices aren't quite as good as Air Brokers, but it may be worth checking them out anyway.

Trains, Buses, and Ferries

Canac http://www.canac.com/

An invaluable site for those looking to travel by train. This site has links to just about every major country's railway site.

Greyhound

you all know that

Weather

World Climate http://www.weather.com/index.html

Weather information for almost every major (and some not so major) cities in the world, including average temps and average rainfall for every month of the year.

Health and Visa Information

my site http://world_bill.tripod.com/bring.html

Helpful in preparing a first aid bag and in learning about which types of medicines to carry for extended travel.

Embassy World http://www.embassyworld.com/

Worldwide embassy links and visa information.

Books

Half.com

The ultimate on-line used bookstore. You can get great semi-dated travel guides or just a cheap paperback for the road.

Travel Clothing and Gear

REI http://www.rei.com/

American co-op of clothing, gear, travel, and outdoor sports and recreation goods.

Campmor http://www.campmor.com/webapp/commerce/command/ExecMacro/welcome.d2w/report

Camping gear on the cheaps.

Outdoor Review http://www.outdoorreview.com/defaultcrx.aspx

Outdoorsman's heaven. They include an outdoors auction site and some decent gear reviews.