2. It wasnt always about reviews: The site was originally designed as a B2B tool not a customer review site, but once the travel community started using it for that purpose the site quickly evolved to meet this need.

3. A world full of bubbles: The rating scores given by each reviewer are measured in "bubbles" not stars.

4. The first of millions: The first ever traveller review was of Captain's House Inn in Chatham, Massachusetts which earned a rating of four bubbles.

5. A top contributor: TripAdvisor member BradJill from Hong Kong has posted the most reviews in the history of the site more than 3,200 and counting.

6. Green means go: Millions of consumers have seen the TripAdvisor owl logo, but how many know why one eye is red and the other green? In fact, the two colours symbolise the way travellers choose where to go (green) and where not to go (red) on their next trip.

7. Sharing a great experience: The majority of reviews on TripAdvisor are positive the average bubble rating is more than 4 out of 5.

8. The most reviewed city: The most reviewed city in the world is London with over 1.8 million reviews of the citys hotels, restaurants and attractions.

9. Looking for a bite to eat? Though for many the site is synonymous with hotels, there are actually more restaurants listed on TripAdvisor than hotels.

10. Every corner of the world covered: There are reviews on TripAdvisor for businesses in every country in the world the most reviewed nation is the USA, the least reviewed is Tuvalu.

11. The growth of a global travel community: Though the sites popularity originated in North America, the majority of TripAdvisors site traffic now comes from outside the US.

Continue reading here:

15 things you didn't know about TripAdvisor