1)Being from Los Angeles and living currently in San Francisco, I always have a lot of people coming to visit me. The problem is, I live in a dorm so they can't stay with me and they always want hotel suggestions. I usually suggest a hotel downtown because I know there are a lot, but there must be some closer to school. Through programmableweb.com, I found a mashup of google maps and 4Hotels.us which maps all the hotels in an area and allows you to click on them. I will definately use this next time I have visitors so they can stay closer to usf rather than downtown!
here is the link- http://hotel-map.4hotels.us/
2)http://www.thursdayclub.com/city/
This mashup of twitter and google maps allows me to click on my city (SF in this case, but they have every city in the world) and find all the restaurants, bars and clubs in that city. Not only that, it gives links to reviews and ratings of all the venues. This is useful to me being new to the city, but I would also use this when I travel to unfamiliar cities to know where to go for food and fun.
3) http://www.ilovemusicvideo.net, this one is amazing! It is a mashup of lastFM and youTube and it allows you to type in an artist you want and watch all music videos of them that are available. It is really easy to use, I used it to watch morrisey videos that are rare just now, otherwise I would not know where to find them! Unlike some mashup sites that I have looked at, it is very clean cut, easy to use and organized with a definitive purpose.
