Useful sites I have come across during the planning of my trip:
Gapyear.com Quite honestly the best travel site I have ever come across. Check out the forums for a wealth of information from what visa to get for multi entry into Thailand to whether or not to take your straighteners with you.
STA Travel Blogs Get some travel inspiration from those who are out there right now.
Hostelworld Find a cheap hostel and see the reviews on it.
Gogap Useful backpacking guide with a blog.
Travelling Mike Entertaining travel blog from Mike who travelled the world over two years.
Thorntree Travel forums run by those folks over at Lonely Planet.
Brave New Traveler American based travel site with some interesting articles.
Lonely Planet Travel inspiration from those who know what they’re talking about!