1. Customer reach: senior or young people, business or leisure oriented, cheap or luxury trips
2. Customer communication methods: advertising on partners' sites, emailing to clients
3. Types of products sold: airline tickets, hotels, car rentals and other travel related services (insurance)
4. Special promotion capabilities: low rates at specific period of the year
5. Online booking conditions & fees: each OTA defined its own booking conditions
6. Affiliate program - yes/no: yes, depending on the OTA's partners
7. Affiliate program payment structure: the OTA receive a commission when people buy something from partners, thanks to the links on the OTA's web site.