Cable - Speeds vary dramatically 1-5 Mbps - plus there can be a serious slowdown due to congestion from too many users. Accelerator software can help increase web speed with various optimizing routines. Many cable companies offer a special combined deal with cable TV and internet access together. Usually you have the same IP number unlike dialup modems where you are usually assigned a different number every time you connect. So with cable, you usually have less anonymity and more security risk as your internet connection is on constantly and hackers are more able to easily zero in on your constant IP designation.

DSL - Various setups 1.4+ Mbps. The speed can also fluctuate depending on the distance from the central connection switch. With cable connection slow-down a growing problem, many users are seeking a good DSL provider.

ISDN - Dual-channel is 128 Kbps. Single-Channel is 64Kbps. Integrated Services Digital Network (ISDN) includes integrated services to help speed up fax delivery, etc.

56K Dialup - Usually much less than 56Kbps. Dialup speeds vary by the quality of the phone line and the many different user configurations. You can connect to your ISP account from most computers. When you disconnect, you are truly disconnected unlike most always on high speed plans which pose somewhat of a security risk. Usually you will be assigned a slightly different IP number every time you connect providing some anonymity. Web accelerator software designed to boost your speed can really help with these connections.