I found a good website for Bootstrap, BootstrapZero.. There are some starter kit to build a bootstrap website, such as a basic image slider website, admin console and silde bar website. Moreover, there are a number good free bootstap templates, such as a google plus like and facebook like templates. All of them are free of charge under a MIT License. I found there are enough resources to build a website. I do not need to buy other stuff online.