Broadband Internet access, also called "broadband Internet" or just "broadband", is a high speed internet connection. Broadband ISPs fall into 2 main categories:
Cable (using the same cable as for TV),  DSL (using phone lines). They will usually have a minimum speed of 256 kb/s up to 30 Mbit/s.

Just recently we are starting to see offers of fiber optics to the home. This will permits speeds of 100Mbits/s and more. Availability is still limited, but growing every day!

Today broadband is available in most US households via TV cable providers or the phone companies. In the US, broadband is rapidly become the standard. If you can afford it, broadband is strongly recommended. It is a totally different experience then dialup. With broadband you will very rarely wait for pages to load. You will experience the web in a much more productive way.