InterContinental Hotels has made videos on the cities where it is located. When I youtubed "Mumbai Tourism" there was one of their videos on the first results page entitled "Travel trips to Mumbai". Check it out here.
In addition to the corporate sponsored videos, there are many films that are generated by consumers who want to share their experiences. These are much more powerful as they are more credible, although nasty competitors could want to show the worst of what you have to offer to steal clients from you. Therefore, it is important to monitor not only online forums but also online video sharing site such as Youtube.