My net connection approaches light speed with cable, but that doesn't guarantee victory over DSL

A high-speed battle for digital dominance is unfolding across the United States. In one corner are the nation’s cable companies — AT&T and RCN, to name a couple — which have been busily upgrading their networks and deploying cable modems for high-speed Internet access. In the other corner are local telephone companies, like the Baby Bells, and dozens of Internet service providers, which are deploying their own high-speed systems using a technology called digital subscriber line or DSL.