Coconut Calendar - The most elegant and simplistic approach to have customers connect with you online.
Qloapps - Open Source System - Build Hotel Booking Website and Manage Online & On-Desk Bookings.
Octopus24 - Online management system for vacation rentals & hotels
FewohBee - Web based management tool for hotels, pensions, accommodations and vacation homes
Sirvoy - Hospitality Management Made Easy!
BSI Hotel Booking System - BSI Hotel Booking System is a real time online hotel booking.