Hostgator is one of the biggest webhosting companies in the United States, over 1.3m domains are hosted by them. I have several sites there as well and all I can say is: Reliable, stable, fast and pretty cheap.

Recently I found out that you can get hosting with them even cheaper, by using one of the Hostgator promo codes, rebate codes or discount coupons they are giving out. Some are officially available on the homepage, but for some you have to dig a bit deeper. The best deals are often limited time offers.

A great way is just googling for the search term, there are also sites specialized in finding the best deals for you, e.g. Hostgator Coupons. Please note that almost all of the coupons are only valid for initial orders and new customers, at least you can't use them for an existing hosting package with hostgator. If you are in doubt, just ask your customer service representative.