We have had our 4 vacation homes listed with VRBO since 2003 and were very happy until they were swallowed up by Homeaway and now Expedia has bought the company. They are charging our guests 6-12% commission for NOTHING! We already pay a big fee to be listed on their site. They do that by forcing owners to take on line bookings and payments.
To avoid these ridiculous fees ALWAYS look for the name of the home and then google the name of the house and town it's in to find the owners website.
You will save yourself a lot of money and send the company a big signal that this greed will not be tolerated!