Sources (12)

1 Google/Ipsos MediaCT, "The 2015 Traveler's Road to Decision," base: U.S. leisure travelers who booked a flight in the last six months, n=1,798; base: U.S. leisure travelers who booked overnight accommodation in the last six months, n=2,711, Aug. 2015.
2 Google/Ipsos Connect, travel playbook omnibus, n=1,664, among U.S. travelers 18+, Apr. 2016.
3 Google/Ipsos Connect, travel playbook omnibus, n=1664, among U.S. Travelers 18+, Apr. 2016.
4 Destinations on Google Data, U.S., Mar. 2016.
5 Google Data, U.S., Mar. 2016.
6 Google/Ipsos MediaCT, "The 2015 Traveler's Road to Decision," base: U.S. leisure travelers, n=3,500, Aug. 2015.
7 Google/Ipsos MediaCT, "The 2015 Travelers Road to Decision," base: leisure travelers n=3,500; base: business travelers n=1,500, Aug. 2015.
8 Google/Ipsos MediaCT, "The 2015 Traveler's Road to Decision," base: U.S. leisure and business travelers who watched/commented on travel-related video, leisure n=1,230, business n=87, Aug. 2015.
9 Google/Ipsos MediaCT, "The 2015 Traveler's Road to Decision," base: U.S. leisure and business travelers, leisure n=1,230, business n=87, Aug. 2015.
10 YouTube Data, U.S., classification as "top travel-related" videos was based on the top 100,000 videos using public data such as headlines, tags, etc., and may not account for every such video available on YouTube. Mobile devices include smartphones and tablets. Jan.–Mar. 2015 vs. Jan.–Mar. 2016.
11 Google/Ipsos Connect, travel playbook omnibus, n=817, among U.S. Travelers 18+ who search for travel videos online, Apr. 2016.
12 Google/Pixability, YouTube travel study, YouTube analysis, Global-English, Apr. 2016.