On Tuesday afternoon, as Secretary of State Hillary Rodham Clinton spoke in Washington about the Internet and human liberty, a Columbia law professor in Manhattan, Eben Moglen, was putting together a shopping list to rebuild the Internet  this time, without governments and big companies able to watch every twitch of our fingers.

The list begins with “cheap, small, low-power plug servers,” Mr. Moglen said. “A small device the size of a cellphone charger, running on a low-power chip. You plug it into the wall and forget about it.”

Almost anyone could have one of these tiny servers, which are now produced for limited purposes but could be adapted to a full range of Internet applications, he said.

“They will get very cheap, very quick,” Mr. Moglen said. “They’re $99; they will go to $69. Once everyone is getting them, they will cost $29.”