Website dev? or Web Application?
If web site you can build it yourself or see your local Craig/Kijiji list to find a person/company. As well as using oDesk.

As for WebApp.. well this is a whole other story. This typically take a lot of planning and logic to be figured out and setting end goal results and milestones.
I have used companies from Odesk Freelancer as well as local. I had problems with all.

If you can find local you will be more happy as timezone does play an important roll. Just because you think you can get it build for $6k in India will not mean that it is what you want and good code.
You have to find a reputable company and that is done by research or trial and error which cost time and money.