If you love music, are an avid traveler
or an uncontrollable shopaholic (www.shopaholicsanonymous.org/) you'll appreciate these three useful websites:

For the Audiophile: www.spotify.com
You can supposedly download any song in the world to any device at your whim. One version is free and two others that charge a small fee. Holy cow, that's cool!

For the Jetsetter: www.airbnb.com
Remember the movie "The Holiday" with Kate Winslet and Cameron Diaz? Well, you get the picture. Rather than renting a hotel room, you stay in a "hosts" home or boat, treehouse, etc. You can also become a host and let others rent your home while you are away (if you dare). "...Guests can build real connections with their hosts, gain access to distinctive spaces, and immerse themselves in the culture of their destinations. Whether it's an urban apartment or countryside castle, Airbnb makes it effortless to showcase your space to an audience of millions, and to find the right space at any price point, anywhere." This site is really fun and this is actually something we were thinking about doing anyway!

For the Shopaholic: www.fiverr.com
On this website, $5 can get you some pretty strange things. How about advertising your business on the forehead of a nerdy teenage girl, or getting a custom java script written for you. You could get a cartoon portrait drawn of you or have a custom beat box Youtube video made just for you. So silly, but I suppose some things might be useful. There are also people looking for things they need, so if you have a talent, perhaps you could make a few bucks!

Let me know about some cool website you like!