Nightlife in Barcelona?

I was wondering if anyone knew of good clubs to go to in Barcelona. I am going for a dew days in August, arriving on a Tuesday & I may not stay for the weekend. I am really into reggaeton, and also like salsa & merengue. So a club with one or more of those would be good.

http://www.barcelonaconnect.com/Nightlife/

This is a very good site.
I´m from Barcelona and you can find anything in here,and it´s in English.
Have a great time!

Anywhere down the road of Las Ramblas. There's tons of bars and nightclubs in that area.