Well, broadband internet providers do provide high speed internet service. High speed internet can also be delivered through DSL and some dial-up providers.
"Xfinity Voice by Comcast has a speed dial function. Xfinity is normally offered as a group of services, though, so you might not decide that if you are happy with your current services."
Some common high speed cable internet providers are Comcast (also called Xfinity) and Verizon Vios. If you would like to use DSL for high speed internet, you can get Qwest.
No - An ISP provides a 'gateway' for a computer to access the internet. An On-line Service is simply a company providing a specific product to the on-line community. For example Virgin Media is an...