From the website:

TravBuddy is a site for people who love to explore the world around them. You can use TravBuddy to find travel buddies, record travel experiences in travel blogs, or share travel tips with travel reviews. No matter where you are exploring, we hope this site will make it easy and fun for you to chronicle your experiences, both past and present. We hope that it will also be an invaluable resource for keeping in contact with family and friends, and for making new friends from all around the world.

TravBuddy has over 650,000 registered members.