Sky broadband is fairly new but seems to offer higher speeds than DSL. DSL service can be unreliable in the fact that it does get disconnected fairly often leaving you with no internet access.
Cable broadband does not necessarily cost more money than DSL broadband. The cost will depend on the company providing the service.
Sky Broadband may be more expensive than DSL but offers improved throughput which leads to faster speeds. Many DSL providers can't match the speeds of Sky Broadband.
DSL is broadband
DSL is always the less expensive and usually more reliable than satellite broadband. The only reason to choose satellite broadband is if DSL and cable are not available in your area. There is no wiring necessary for satellite broadband internet and it is available with a permanent connectivity with constant bandwidth. You do not need a phone line and it may be available in rural areas where DSL is not available. Given a choice, I beleive most would choose DSL over satellite broadband. DSL will provide you with a faster and more stable connection when compared to satellite broadband.
DSL connection and also broadband is very good services for providing internet. But rather than DSL go for broadband if possible
broadband
Someone can find information about DSL broadband on Wikipedia. Also one can find more detailed information on sites such as 'How Stuff Works' and 'DSL Reports'.
The basic broadband plan from Verizon cost $49.99. This is a little more expensive than some of the DSL plans which are available.
DSL is faster
One can obtain broadband DSL by contacting a company that specializes in broadband services. These companies include AT&T Internet and Broadband National.
DSL internet service is much faster than broadband. It is usually about the same speed as broadband, but this varies depending on where one is and the provider one uses.
Speed, mainly. Broadband (cable internet) is going to be much faster than DSL.