This is the biggest celebrity hot spot in Las Vegas.
http://www.taolasvegas.com/

This is a really cool place with bad ass dancing and non stop lights.
http://www.stratanyc.com/

This place is kick ass in every way. If your looking to see models and celebrities partying all night in a cool environment, go here.
http://www.elementny.com/

This is the coolest dance club in Los Angeles bar none. Non stop celebrities and partying all night long. If you get out to LA, go to the Circus.
http://www.circusdisco.com/

This may be the most fun you can have in New York City. Even if you do not dance, this place is amazing for seeing all walks of life enjoying life to the max.
http://www.pinkelephantclub.com/

This is one of the coolest places on our entire planet. I actually havent been there but have been told how amazing it is and cannot wait to find time to make it out. Check the imagery and stuff. The idea rocks too.
http://www.boramag.com/2008/12/03/eco-friendly-nightclub-greenhouse-nyc/