51.   Although AOL introduced instant messaging to a general audience, the technology is as old as the Internet.

52.   American technology is still the envy of the world, and her universities are the queens of learning.

53.   Although the clothes are not for sale, the technology is in place to allow that, Namer said.

54.   Although the technology has been effective in detecting the explosive RDX, it has been less successful in detecting the most common explosive, TNT.

55.   Although the technology was effective, it was also very expensive.

56.   Among the redeeming features of a new electronic exchange would be the technologies that make for fast trading and efficient execution, Mr. Simon said.

57.   American medical technology is the best on earth, but its health-care system is the most wasteful.

58.   Although the technologies are new, the argument over the proper limits of speech is old, and fundamental to the founding of the American experiment in government.

59.   Analogously, there must be technology to increase the size of parking spots.

60.   Among them are new technologies that undercut jobs and Wall Street investors who continue to reward layoff announcements.